diff --git a/src/libcoreint/opcodes-helpers-variables.c b/src/libcoreint/opcodes-helpers-variables.c
index c07984fa5..c1e6e90e5 100644
--- a/src/libcoreint/opcodes-helpers-variables.c
+++ b/src/libcoreint/opcodes-helpers-variables.c
@@ -42,9 +42,9 @@ do_strict_eval_arguments_check (ecma_reference_t ref) /**< ECMA-reference */
         ecma_string_t* magic_string_eval = ecma_get_magic_string (ECMA_MAGIC_STRING_EVAL);
         ecma_string_t* magic_string_arguments = ecma_get_magic_string (ECMA_MAGIC_STRING_ARGUMENTS);
 
-        ret = (ecma_compare_ecma_strings (ref.referenced_name_p,
+        ret = (ecma_compare_ecma_strings (ECMA_GET_POINTER (ref.referenced_name_cp),
                                           magic_string_eval)
-               || ecma_compare_ecma_strings (ref.referenced_name_p,
+               || ecma_compare_ecma_strings (ECMA_GET_POINTER (ref.referenced_name_cp),
                                              magic_string_arguments));
 
         ecma_deref_ecma_string (magic_string_eval);
diff --git a/src/libcoreint/opcodes.c b/src/libcoreint/opcodes.c
index 469a9cc69..10f24df9a 100644
--- a/src/libcoreint/opcodes.c
+++ b/src/libcoreint/opcodes.c
@@ -1472,7 +1472,7 @@ opfunc_delete_var (opcode_t opdata, /**< operation data */
       JERRY_ASSERT (ecma_is_lexical_environment (bindings_p));
 
       ECMA_TRY_CATCH (delete_completion,
-                      ecma_op_delete_binding (bindings_p, ref.referenced_name_p),
+                      ecma_op_delete_binding (bindings_p, ECMA_GET_POINTER (ref.referenced_name_cp)),
                       ret_value);
 
       ret_value = set_variable_value (int_data, dst_var_idx, delete_completion.u.value);
diff --git a/src/libecmaobjects/ecma-globals.h b/src/libecmaobjects/ecma-globals.h
index 201c1688a..10a8eb391 100644
--- a/src/libecmaobjects/ecma-globals.h
+++ b/src/libecmaobjects/ecma-globals.h
@@ -773,10 +773,10 @@ typedef struct
   ecma_value_t base;
 
   /** referenced name */
-  ecma_string_t *referenced_name_p;
+  unsigned int referenced_name_cp : ECMA_POINTER_FIELD_WIDTH;
 
   /** strict reference flag */
-  bool is_strict;
+  unsigned int is_strict : 1;
 } ecma_reference_t;
 
 /**
diff --git a/src/libecmaoperations/ecma-get-put-value.c b/src/libecmaoperations/ecma-get-put-value.c
index 51b13eb58..d8a0fb01d 100644
--- a/src/libecmaoperations/ecma-get-put-value.c
+++ b/src/libecmaoperations/ecma-get-put-value.c
@@ -73,7 +73,7 @@ ecma_op_get_value (ecma_reference_t ref) /**< ECMA-reference */
       JERRY_ASSERT(obj_p != NULL
                    && !ecma_is_lexical_environment (obj_p));
 
-      return ecma_op_object_get (obj_p, ref.referenced_name_p);
+      return ecma_op_object_get (obj_p, ECMA_GET_POINTER (ref.referenced_name_cp));
     }
     else
     {
@@ -86,7 +86,7 @@ ecma_op_get_value (ecma_reference_t ref) /**< ECMA-reference */
       JERRY_ASSERT (obj_p != NULL
                     && !ecma_is_lexical_environment (obj_p));
 
-      ret_value = ecma_op_object_get (obj_p, ref.referenced_name_p);
+      ret_value = ecma_op_object_get (obj_p, ECMA_GET_POINTER (ref.referenced_name_cp));
 
       ECMA_FINALIZE (obj_base);
 
@@ -101,7 +101,9 @@ ecma_op_get_value (ecma_reference_t ref) /**< ECMA-reference */
                  && ecma_is_lexical_environment (lex_env_p));
 
     // 5.a
-    return ecma_op_get_binding_value (lex_env_p, ref.referenced_name_p, ref.is_strict);
+    return ecma_op_get_binding_value (lex_env_p,
+                                      ECMA_GET_POINTER (ref.referenced_name_cp),
+                                      ref.is_strict);
   }
 } /* ecma_op_get_value */
 
@@ -159,7 +161,7 @@ ecma_op_put_value (ecma_reference_t ref, /**< ECMA-reference */
       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,
+                                                               ECMA_GET_POINTER (ref.referenced_name_cp),
                                                                value,
                                                                false);
 
@@ -186,7 +188,7 @@ ecma_op_put_value (ecma_reference_t ref, /**< ECMA-reference */
 
       ECMA_TRY_CATCH (put_completion,
                       ecma_op_object_put (obj_p,
-                                          ref.referenced_name_p,
+                                          ECMA_GET_POINTER (ref.referenced_name_cp),
                                           value,
                                           ref.is_strict),
                       ret_value);
@@ -209,18 +211,20 @@ ecma_op_put_value (ecma_reference_t ref, /**< ECMA-reference */
       JERRY_ASSERT (obj_p != NULL
                     && !ecma_is_lexical_environment (obj_p));
 
+      ecma_string_t *referenced_name_p = ECMA_GET_POINTER (ref.referenced_name_cp);
+
       // sub_2.
-      if (!ecma_op_object_can_put (obj_p, ref.referenced_name_p))
+      if (!ecma_op_object_can_put (obj_p, referenced_name_p))
       {
         ret_value = ecma_reject_put (ref.is_strict);
       }
       else
       {
         // sub_3.
-        ecma_property_t *own_prop_p = ecma_op_object_get_own_property (obj_p, ref.referenced_name_p);
+        ecma_property_t *own_prop_p = ecma_op_object_get_own_property (obj_p, referenced_name_p);
 
         // sub_5.
-        ecma_property_t *prop_p = ecma_op_object_get_property (obj_p, ref.referenced_name_p);
+        ecma_property_t *prop_p = ecma_op_object_get_property (obj_p, referenced_name_p);
 
         // sub_4., sub_7
         if ((own_prop_p != NULL
@@ -261,7 +265,10 @@ ecma_op_put_value (ecma_reference_t ref, /**< ECMA-reference */
                  && ecma_is_lexical_environment (lex_env_p));
 
     // 5.a.
-    return ecma_op_set_mutable_binding (lex_env_p, ref.referenced_name_p, value, ref.is_strict);
+    return ecma_op_set_mutable_binding (lex_env_p,
+                                        ECMA_GET_POINTER (ref.referenced_name_cp),
+                                        value,
+                                        ref.is_strict);
   }
 } /* ecma_op_put_value */
 
diff --git a/src/libecmaoperations/ecma-reference.c b/src/libecmaoperations/ecma-reference.c
index 0aad474fd..5448a2e93 100644
--- a/src/libecmaoperations/ecma-reference.c
+++ b/src/libecmaoperations/ecma-reference.c
@@ -84,10 +84,11 @@ ecma_make_reference (ecma_value_t base, /**< base value */
   ecma_reference_t ref = (ecma_reference_t)
   {
     .base = ecma_copy_value (base, true),
-    .referenced_name_p = name_p,
     .is_strict = is_strict
   };
 
+  ECMA_SET_POINTER (ref.referenced_name_cp, name_p);
+
   return ref;
 } /* ecma_make_reference */
 
@@ -101,7 +102,7 @@ void
 ecma_free_reference (ecma_reference_t ref) /**< reference */
 {
   ecma_free_value (ref.base, true);
-  ecma_deref_ecma_string (ref.referenced_name_p);
+  ecma_deref_ecma_string (ECMA_GET_POINTER (ref.referenced_name_cp));
 } /* ecma_free_reference */
 
 /**