diff --git a/src/libcoreint/interpreter.c b/src/libcoreint/interpreter.c
index e803d618e..50cc6b6f5 100644
--- a/src/libcoreint/interpreter.c
+++ b/src/libcoreint/interpreter.c
@@ -350,7 +350,7 @@ run_int (void)
 
   ecma_init ();
 
-  ecma_object_t *glob_obj_p = ecma_builtin_get_global_object ();
+  ecma_object_t *glob_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
 
   ecma_object_t *lex_env_p = ecma_op_create_global_environment (glob_obj_p);
   ecma_value_t this_binding_value = ecma_make_object_value (glob_obj_p);
diff --git a/src/libecmabuiltins/ecma-builtin-global-object.c b/src/libecmabuiltins/ecma-builtin-global-object.c
index cb58b77a4..8af8d946d 100644
--- a/src/libecmabuiltins/ecma-builtin-global-object.c
+++ b/src/libecmabuiltins/ecma-builtin-global-object.c
@@ -82,50 +82,17 @@ static const ecma_length_t ecma_builtin_global_property_number = (sizeof (ecma_b
                                                                   sizeof (ecma_magic_string_id_t));
 JERRY_STATIC_ASSERT (sizeof (ecma_builtin_global_property_names) > sizeof (void*));
 
-/**
- * Global object
- */
-static ecma_object_t* ecma_global_object_p = NULL;
-
-/**
- * Get Global object
- *
- * @return pointer to the Global object
- *         caller should free the reference by calling ecma_deref_object
- */
-ecma_object_t*
-ecma_builtin_get_global_object (void)
-{
-  JERRY_ASSERT(ecma_global_object_p != NULL);
-
-  ecma_ref_object (ecma_global_object_p);
-
-  return ecma_global_object_p;
-} /* ecma_builtin_get_global_object */
-
-/**
- * Check if passed object is the Global object.
- *
- * @return true - if passed pointer points to the Global object,
- *         false - otherwise.
- */
-bool
-ecma_builtin_is_global_object (ecma_object_t *object_p) /**< an object */
-{
-  return (object_p == ecma_global_object_p);
-} /* ecma_builtin_is_global_object */
-
 /**
  * Initialize Global object.
  *
  * Warning:
  *         the routine should be called only from ecma_init_builtins
+ *
+ * @return pointer to the object
  */
-void
+ecma_object_t*
 ecma_builtin_init_global_object (void)
 {
-  JERRY_ASSERT(ecma_global_object_p == NULL);
-
   ecma_object_t *glob_obj_p = ecma_create_object (NULL, true, ECMA_OBJECT_TYPE_GENERAL);
 
   ecma_property_t *class_prop_p = ecma_create_internal_property (glob_obj_p,
@@ -146,24 +113,9 @@ ecma_builtin_init_global_object (void)
 
   ecma_set_object_is_builtin (glob_obj_p, true);
 
-  ecma_global_object_p = glob_obj_p;
+  return glob_obj_p;
 } /* ecma_builtin_init_global_object */
 
-/**
- * Remove global reference to the Global object.
- *
- * Warning:
- *         the routine should be called only from ecma_finalize_builtins
- */
-void
-ecma_builtin_finalize_global_object (void)
-{
-  JERRY_ASSERT (ecma_global_object_p != NULL);
-
-  ecma_deref_object (ecma_global_object_p);
-  ecma_global_object_p = NULL;
-} /* ecma_builtin_finalize_global_object */
-
 /**
  * The Global object's 'eval' routine
  *
@@ -461,7 +413,7 @@ ecma_property_t*
 ecma_builtin_global_try_to_instantiate_property (ecma_object_t *obj_p, /**< object */
                                                  ecma_string_t *prop_name_p) /**< property's name */
 {
-  JERRY_ASSERT (ecma_builtin_is_global_object (obj_p));
+  JERRY_ASSERT (ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_GLOBAL));
   JERRY_ASSERT (ecma_find_named_property (obj_p, prop_name_p) == NULL);
 
   ecma_magic_string_id_t id;
@@ -560,7 +512,7 @@ ecma_builtin_global_try_to_instantiate_property (ecma_object_t *obj_p, /**< obje
     }
     case ECMA_MAGIC_STRING_OBJECT_UL:
     {
-      ecma_object_t *object_obj_p = ecma_builtin_get_object_object ();
+      ecma_object_t *object_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_OBJECT);
 
       value = ecma_make_object_value (object_obj_p);
 
diff --git a/src/libecmabuiltins/ecma-builtin-object-object.c b/src/libecmabuiltins/ecma-builtin-object-object.c
index ce4b5dac7..bb95346ff 100644
--- a/src/libecmabuiltins/ecma-builtin-object-object.c
+++ b/src/libecmabuiltins/ecma-builtin-object-object.c
@@ -71,50 +71,17 @@ static const ecma_length_t ecma_builtin_object_property_number = (sizeof (ecma_b
                                                                   sizeof (ecma_magic_string_id_t));
 JERRY_STATIC_ASSERT (sizeof (ecma_builtin_object_property_names) > sizeof (void*));
 
-/**
- * Object object
- */
-static ecma_object_t* ecma_object_object_p = NULL;
-
-/**
- * Get Object object
- *
- * @return pointer to the Object object
- *         caller should free the reference by calling ecma_deref_object
- */
-ecma_object_t*
-ecma_builtin_get_object_object (void)
-{
-  JERRY_ASSERT(ecma_object_object_p != NULL);
-
-  ecma_ref_object (ecma_object_object_p);
-
-  return ecma_object_object_p;
-} /* ecma_builtin_get_object_object */
-
-/**
- * Check if passed object is the Object object.
- *
- * @return true - if passed pointer points to the Object object,
- *         false - otherwise.
- */
-bool
-ecma_builtin_is_object_object (ecma_object_t *object_p) /**< an object */
-{
-  return (object_p == ecma_object_object_p);
-} /* ecma_builtin_is_object_object */
-
 /**
  * Initialize Object object.
  *
  * Warning:
  *         the routine should be called only from ecma_init_builtins
+ *
+ * @return pointer to the object
  */
-void
+ecma_object_t*
 ecma_builtin_init_object_object (void)
 {
-  JERRY_ASSERT(ecma_object_object_p == NULL);
-
   ecma_object_t *object_obj_p = ecma_create_object (NULL, true, ECMA_OBJECT_TYPE_FUNCTION);
 
   ecma_property_t *class_prop_p = ecma_create_internal_property (object_obj_p,
@@ -135,24 +102,9 @@ ecma_builtin_init_object_object (void)
 
   ecma_set_object_is_builtin (object_obj_p, true);
 
-  ecma_object_object_p = object_obj_p;
+  return object_obj_p;
 } /* ecma_builtin_init_object_object */
 
-/**
- * Remove global reference to the Object object.
- *
- * Warning:
- *         the routine should be called only from ecma_finalize_builtins
- */
-void
-ecma_builtin_finalize_object_object (void)
-{
-  JERRY_ASSERT (ecma_object_object_p != NULL);
-
-  ecma_deref_object (ecma_object_object_p);
-  ecma_object_object_p = NULL;
-} /* ecma_builtin_finalize_object_object */
-
 /**
  * Get number of routine's parameters
  *
@@ -627,7 +579,7 @@ ecma_property_t*
 ecma_builtin_object_try_to_instantiate_property (ecma_object_t *obj_p, /**< object */
                                                  ecma_string_t *prop_name_p) /**< property's name */
 {
-  JERRY_ASSERT (ecma_builtin_is_object_object (obj_p));
+  JERRY_ASSERT (ecma_builtin_is (obj_p, ECMA_BUILTIN_ID_OBJECT));
   JERRY_ASSERT (ecma_find_named_property (obj_p, prop_name_p) == NULL);
 
   ecma_magic_string_id_t id;
diff --git a/src/libecmabuiltins/ecma-builtins-internal.h b/src/libecmabuiltins/ecma-builtins-internal.h
index 886704c37..9d9c0ce8b 100644
--- a/src/libecmabuiltins/ecma-builtins-internal.h
+++ b/src/libecmabuiltins/ecma-builtins-internal.h
@@ -20,42 +20,9 @@
 # error "!ECMA_BUILTINS_INTERNAL"
 #endif /* !ECMA_BUILTINS_INTERNAL */
 
+#include "ecma-builtins.h"
 #include "ecma-globals.h"
 
-/**
- * A built-in object's identifier
- */
-typedef enum
-{
-  ECMA_BUILTIN_ID_GLOBAL, /**< the Global object (15.1) */
-  ECMA_BUILTIN_ID_OBJECT, /**< the Object object (15.2.1) */
-  ECMA_BUILTIN_ID_OBJECT_PROTOTYPE, /**< the Object object (15.2.4) */
-  ECMA_BUILTIN_ID_FUNCTION, /**< the Function object (15.3.1) */
-  ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE, /**< the Function object (15.3.4) */
-  ECMA_BUILTIN_ID_ARRAY, /**< the Array object (15.4.1) */
-  ECMA_BUILTIN_ID_ARRAY_PROTOTYPE, /**< the Array object (15.4.4) */
-  ECMA_BUILTIN_ID_STRING, /**< the String object (15.5.1) */
-  ECMA_BUILTIN_ID_STRING_PROTOTYPE, /**< the String object (15.5.4) */
-  ECMA_BUILTIN_ID_BOOLEAN, /**< the Boolean object (15.6.1) */
-  ECMA_BUILTIN_ID_BOOLEAN_PROTOTYPE, /**< the Boolean object (15.6.4) */
-  ECMA_BUILTIN_ID_NUMBER, /**< the Number object (15.7.1) */
-  ECMA_BUILTIN_ID_NUMBER_PROTOTYPE, /**< the Number object (15.7.4) */
-  ECMA_BUILTIN_ID_DATE, /**< the Date object (15.9.2) */
-  ECMA_BUILTIN_ID_REGEXP, /**< the RegExp object (15.10.3) */
-  ECMA_BUILTIN_ID_REGEXP_PROTOTYPE, /**< the RegExp object (15.10.6) */
-  ECMA_BUILTIN_ID_ERROR, /**< the Error object (15.11.1) */
-  ECMA_BUILTIN_ID_ERROR_PROTOTYPE, /**< the Error object (15.11.4) */
-  ECMA_BUILTIN_ID_EVAL_ERROR, /**< the EvalError object (15.11.6.1) */
-  ECMA_BUILTIN_ID_RANGE_ERROR, /**< the RangeError object (15.11.6.2) */
-  ECMA_BUILTIN_ID_REFERENCE_ERROR, /**< the ReferenceError object (15.11.6.3) */
-  ECMA_BUILTIN_ID_SYNTAX_ERROR, /**< the SyntaxError object (15.11.6.4) */
-  ECMA_BUILTIN_ID_TYPE_ERROR, /**< the SyntaxError object (15.11.6.5) */
-  ECMA_BUILTIN_ID_SYNTAX_URI_ERROR, /**< the URIError object (15.11.6.6) */
-  ECMA_BUILTIN_ID_MATH, /**< the Math object (15.8) */
-  ECMA_BUILTIN_ID_JSON, /**< the JSON object (15.12) */
-  ECMA_BUILTIN_ID__COUNT /**< number of built-in objects */
-} ecma_builtin_id_t;
-
 /**
  * Position of built-in object's id field in [[Built-in routine ID]] internal property
  */
@@ -84,8 +51,7 @@ ecma_builtin_make_function_object_for_routine (ecma_builtin_id_t builtin_id,
                                                ecma_magic_string_id_t routine_id);
 
 /* ecma-builtin-global-object.c */
-extern void ecma_builtin_init_global_object (void);
-extern void ecma_builtin_finalize_global_object (void);
+extern ecma_object_t* ecma_builtin_init_global_object (void);
 
 extern ecma_length_t
 ecma_builtin_global_get_routine_parameters_number (ecma_magic_string_id_t routine_id);
@@ -98,8 +64,7 @@ ecma_builtin_global_try_to_instantiate_property (ecma_object_t *obj_p,
                                                  ecma_string_t *prop_name_p);
 
 /* ecma-builtin-object-object.c */
-extern void ecma_builtin_init_object_object (void);
-extern void ecma_builtin_finalize_object_object (void);
+extern ecma_object_t* ecma_builtin_init_object_object (void);
 
 extern ecma_length_t
 ecma_builtin_object_get_routine_parameters_number (ecma_magic_string_id_t routine_id);
diff --git a/src/libecmabuiltins/ecma-builtins.c b/src/libecmabuiltins/ecma-builtins.c
index 664419d8b..4c3b6bac1 100644
--- a/src/libecmabuiltins/ecma-builtins.c
+++ b/src/libecmabuiltins/ecma-builtins.c
@@ -15,6 +15,7 @@
 
 #include "ecma-alloc.h"
 #include "ecma-builtins.h"
+#include "ecma-gc.h"
 #include "ecma-globals.h"
 #include "ecma-helpers.h"
 #include "ecma-objects.h"
@@ -39,15 +40,57 @@ ecma_builtin_dispatch_routine (ecma_builtin_id_t builtin_object_id,
                                ecma_value_t arguments_list [],
                                ecma_length_t arguments_number);
 
+/**
+ * Pointer to instances of built-in objects
+ */
+static ecma_object_t* ecma_builtin_objects [ECMA_BUILTIN_ID__COUNT];
+
+/**
+ * Check if passed object is the instance of specified built-in.
+ */
+bool
+ecma_builtin_is (ecma_object_t *obj_p, /**< pointer to an object */
+                 ecma_builtin_id_t builtin_id) /**< id of built-in to check on */
+{
+  JERRY_ASSERT (obj_p != NULL && !ecma_is_lexical_environment (obj_p));
+  JERRY_ASSERT (builtin_id < ECMA_BUILTIN_ID__COUNT);
+  JERRY_ASSERT (ecma_builtin_objects [builtin_id] != NULL);
+
+  return (obj_p == ecma_builtin_objects [builtin_id]);
+} /* ecma_builtin_is */
+
+/**
+ * Get reference to specified built-in object
+ *
+ * @return pointer to the object's instance
+ */
+ecma_object_t*
+ecma_builtin_get (ecma_builtin_id_t builtin_id) /**< id of built-in to check on */
+{
+  JERRY_ASSERT (builtin_id < ECMA_BUILTIN_ID__COUNT);
+  JERRY_ASSERT (ecma_builtin_objects [builtin_id] != NULL);
+
+  ecma_ref_object (ecma_builtin_objects [builtin_id]);
+
+  return ecma_builtin_objects [builtin_id];
+} /* ecma_builtin_get */
+
 /**
  * Initialize ECMA built-in objects
  */
 void
 ecma_init_builtins (void)
 {
-  ecma_builtin_init_object_object ();
+  for (ecma_builtin_id_t id = 0;
+       id < ECMA_BUILTIN_ID__COUNT;
+       id++)
+  {
+    ecma_builtin_objects [id] = NULL;
+  }
 
-  ecma_builtin_init_global_object ();
+  ecma_builtin_objects [ECMA_BUILTIN_ID_OBJECT] = ecma_builtin_init_object_object ();
+
+  ecma_builtin_objects [ECMA_BUILTIN_ID_GLOBAL] = ecma_builtin_init_global_object ();
 } /* ecma_init_builtins */
 
 /**
@@ -56,9 +99,17 @@ ecma_init_builtins (void)
 void
 ecma_finalize_builtins (void)
 {
-  ecma_builtin_finalize_global_object ();
+  for (ecma_builtin_id_t id = 0;
+       id < ECMA_BUILTIN_ID__COUNT;
+       id++)
+  {
+    if (ecma_builtin_objects [id] != NULL)
+    {
+      ecma_deref_object (ecma_builtin_objects [id]);
 
-  ecma_builtin_finalize_object_object ();
+      ecma_builtin_objects [id] = NULL;
+    }
+  }
 } /* ecma_finalize_builtins */
 
 /**
@@ -79,19 +130,17 @@ ecma_builtin_try_to_instantiate_property (ecma_object_t *object_p, /**< object *
                                                                     ECMA_INTERNAL_PROPERTY_BUILT_IN_ID);
   ecma_builtin_id_t builtin_id = (ecma_builtin_id_t) built_in_id_prop_p->u.internal_property.value;
 
+  JERRY_ASSERT (ecma_builtin_is (object_p, builtin_id));
+
   switch (builtin_id)
   {
     case ECMA_BUILTIN_ID_GLOBAL:
     {
-      JERRY_ASSERT (ecma_builtin_is_global_object (object_p));
-
       return ecma_builtin_global_try_to_instantiate_property (object_p, string_p);
     }
 
     case ECMA_BUILTIN_ID_OBJECT:
     {
-      JERRY_ASSERT (ecma_builtin_is_object_object (object_p));
-
       return ecma_builtin_object_try_to_instantiate_property (object_p, string_p);
     }
 
@@ -227,12 +276,12 @@ ecma_builtin_dispatch_call (ecma_object_t *obj_p, /**< built-in object */
                                                                       ECMA_INTERNAL_PROPERTY_BUILT_IN_ID);
     ecma_builtin_id_t builtin_id = (ecma_builtin_id_t) built_in_id_prop_p->u.internal_property.value;
 
+    JERRY_ASSERT (ecma_builtin_is (obj_p, builtin_id));
+
     switch (builtin_id)
     {
       case ECMA_BUILTIN_ID_OBJECT:
       {
-        JERRY_ASSERT (ecma_builtin_is_object_object (obj_p));
-
         return ecma_builtin_object_dispatch_call (arguments_list_p, arguments_list_len);
       }
 
@@ -298,12 +347,12 @@ ecma_builtin_dispatch_construct (ecma_object_t *obj_p, /**< built-in object */
                                                                     ECMA_INTERNAL_PROPERTY_BUILT_IN_ID);
   ecma_builtin_id_t builtin_id = (ecma_builtin_id_t) built_in_id_prop_p->u.internal_property.value;
 
+  JERRY_ASSERT (ecma_builtin_is (obj_p, builtin_id));
+
   switch (builtin_id)
   {
     case ECMA_BUILTIN_ID_OBJECT:
     {
-      JERRY_ASSERT (ecma_builtin_is_object_object (obj_p));
-
       return ecma_builtin_object_dispatch_construct (arguments_list_p, arguments_list_len);
     }
 
diff --git a/src/libecmabuiltins/ecma-builtins.h b/src/libecmabuiltins/ecma-builtins.h
index 400e15aa3..9eb015757 100644
--- a/src/libecmabuiltins/ecma-builtins.h
+++ b/src/libecmabuiltins/ecma-builtins.h
@@ -18,7 +18,41 @@
 
 #include "ecma-globals.h"
 
-/* ecma-builtin.c */
+/**
+ * A built-in object's identifier
+ */
+typedef enum
+{
+  ECMA_BUILTIN_ID_GLOBAL, /**< the Global object (15.1) */
+  ECMA_BUILTIN_ID_OBJECT, /**< the Object object (15.2.1) */
+  ECMA_BUILTIN_ID_OBJECT_PROTOTYPE, /**< the Object object (15.2.4) */
+  ECMA_BUILTIN_ID_FUNCTION, /**< the Function object (15.3.1) */
+  ECMA_BUILTIN_ID_FUNCTION_PROTOTYPE, /**< the Function object (15.3.4) */
+  ECMA_BUILTIN_ID_ARRAY, /**< the Array object (15.4.1) */
+  ECMA_BUILTIN_ID_ARRAY_PROTOTYPE, /**< the Array object (15.4.4) */
+  ECMA_BUILTIN_ID_STRING, /**< the String object (15.5.1) */
+  ECMA_BUILTIN_ID_STRING_PROTOTYPE, /**< the String object (15.5.4) */
+  ECMA_BUILTIN_ID_BOOLEAN, /**< the Boolean object (15.6.1) */
+  ECMA_BUILTIN_ID_BOOLEAN_PROTOTYPE, /**< the Boolean object (15.6.4) */
+  ECMA_BUILTIN_ID_NUMBER, /**< the Number object (15.7.1) */
+  ECMA_BUILTIN_ID_NUMBER_PROTOTYPE, /**< the Number object (15.7.4) */
+  ECMA_BUILTIN_ID_DATE, /**< the Date object (15.9.2) */
+  ECMA_BUILTIN_ID_REGEXP, /**< the RegExp object (15.10.3) */
+  ECMA_BUILTIN_ID_REGEXP_PROTOTYPE, /**< the RegExp object (15.10.6) */
+  ECMA_BUILTIN_ID_ERROR, /**< the Error object (15.11.1) */
+  ECMA_BUILTIN_ID_ERROR_PROTOTYPE, /**< the Error object (15.11.4) */
+  ECMA_BUILTIN_ID_EVAL_ERROR, /**< the EvalError object (15.11.6.1) */
+  ECMA_BUILTIN_ID_RANGE_ERROR, /**< the RangeError object (15.11.6.2) */
+  ECMA_BUILTIN_ID_REFERENCE_ERROR, /**< the ReferenceError object (15.11.6.3) */
+  ECMA_BUILTIN_ID_SYNTAX_ERROR, /**< the SyntaxError object (15.11.6.4) */
+  ECMA_BUILTIN_ID_TYPE_ERROR, /**< the SyntaxError object (15.11.6.5) */
+  ECMA_BUILTIN_ID_SYNTAX_URI_ERROR, /**< the URIError object (15.11.6.6) */
+  ECMA_BUILTIN_ID_MATH, /**< the Math object (15.8) */
+  ECMA_BUILTIN_ID_JSON, /**< the JSON object (15.12) */
+  ECMA_BUILTIN_ID__COUNT /**< number of built-in objects */
+} ecma_builtin_id_t;
+
+/* ecma-builtins.c */
 extern void ecma_init_builtins (void);
 extern void ecma_finalize_builtins (void);
 
@@ -33,23 +67,9 @@ ecma_builtin_dispatch_construct (ecma_object_t *obj_p,
 extern ecma_property_t*
 ecma_builtin_try_to_instantiate_property (ecma_object_t *object_p,
                                           ecma_string_t *string_p);
-
-/* ecma-builtin-global-object.c */
-extern ecma_object_t* ecma_builtin_get_global_object (void);
-extern bool ecma_builtin_is_global_object (ecma_object_t *object_p);
-
-/* ecma-builtin-object-object.c */
-extern ecma_object_t* ecma_builtin_get_object_object (void);
-extern bool ecma_builtin_is_object_object (ecma_object_t *object_p);
-
-extern ecma_object_t* ecma_builtin_get_object_prototype_object (void);
-extern bool ecma_builtin_is_object_prototype_object (ecma_object_t *object_p);
-
-/* ecma-builtin-array-object.c */
-extern ecma_object_t* ecma_builtin_get_array_object (void);
-extern bool ecma_builtin_is_array_object (ecma_object_t *object_p);
-
-extern ecma_object_t* ecma_builtin_get_array_prototype_object (void);
-extern bool ecma_builtin_is_array_prototype_object (ecma_object_t *object_p);
-
+extern bool
+ecma_builtin_is (ecma_object_t *obj_p,
+                 ecma_builtin_id_t builtin_id);
+extern ecma_object_t*
+ecma_builtin_get (ecma_builtin_id_t builtin_id);
 #endif /* !ECMA_BUILTINS_H */
diff --git a/src/libecmaoperations/ecma-function-object.c b/src/libecmaoperations/ecma-function-object.c
index 7c80b3b9d..d03bb62f6 100644
--- a/src/libecmaoperations/ecma-function-object.c
+++ b/src/libecmaoperations/ecma-function-object.c
@@ -504,7 +504,7 @@ ecma_op_function_call (ecma_object_t *func_obj_p, /**< Function object */
              || ecma_is_value_null (this_arg_value))
     {
       // 2.
-      this_binding = ecma_make_object_value (ecma_builtin_get_global_object ());
+      this_binding = ecma_make_object_value (ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL));
     }
     else
     {
@@ -702,7 +702,7 @@ ecma_op_function_declaration (ecma_object_t *lex_env_p, /**< lexical environment
   else if (ecma_is_lexical_environment_global (lex_env_p))
   {
     // e.
-    ecma_object_t *glob_obj_p = ecma_builtin_get_global_object ();
+    ecma_object_t *glob_obj_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
 
     ecma_property_t *existing_prop_p = ecma_op_object_get_property (glob_obj_p, function_name_p);
 
diff --git a/src/libecmaoperations/ecma-get-put-value.c b/src/libecmaoperations/ecma-get-put-value.c
index faf847f43..fe6f37553 100644
--- a/src/libecmaoperations/ecma-get-put-value.c
+++ b/src/libecmaoperations/ecma-get-put-value.c
@@ -157,7 +157,7 @@ ecma_op_put_value (ecma_reference_t ref, /**< ECMA-reference */
     else
     {
       // 3.b.
-      ecma_object_t *global_object_p = ecma_builtin_get_global_object ();
+      ecma_object_t *global_object_p = ecma_builtin_get (ECMA_BUILTIN_ID_GLOBAL);
 
       ecma_completion_value_t completion = ecma_op_object_put (global_object_p,
                                                                ref.referenced_name_p,
diff --git a/src/libecmaoperations/ecma-lex-env.c b/src/libecmaoperations/ecma-lex-env.c
index 2004cfbde..9ec8818a2 100644
--- a/src/libecmaoperations/ecma-lex-env.c
+++ b/src/libecmaoperations/ecma-lex-env.c
@@ -526,7 +526,7 @@ ecma_is_lexical_environment_global (ecma_object_t *lex_env_p) /**< lexical envir
   {
     ecma_object_t *binding_obj_p = ecma_get_lex_env_binding_object (lex_env_p);
 
-    return ecma_builtin_is_global_object (binding_obj_p);
+    return ecma_builtin_is (binding_obj_p, ECMA_BUILTIN_ID_GLOBAL);
   }
   else
   {