diff --git a/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-json.cpp b/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-json.cpp
index cb21e119c..d16dc4c2b 100644
--- a/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-json.cpp
+++ b/jerry-core/ecma/builtin-objects/ecma-builtin-helpers-json.cpp
@@ -303,3 +303,8 @@ ecma_builtin_helper_json_create_hex_digit_ecma_string (uint8_t value) /**< value
 
   return hex_str_p;
 } /* ecma_builtin_helper_json_create_hex_digit_ecma_string */
+
+/**
+ * @}
+ * @}
+ */
diff --git a/jerry-core/ecma/builtin-objects/ecma-builtin-helpers.cpp b/jerry-core/ecma/builtin-objects/ecma-builtin-helpers.cpp
index 258c3a8f0..ca1f011cf 100644
--- a/jerry-core/ecma/builtin-objects/ecma-builtin-helpers.cpp
+++ b/jerry-core/ecma/builtin-objects/ecma-builtin-helpers.cpp
@@ -716,7 +716,6 @@ ecma_builtin_helper_def_prop (ecma_object_t *obj_p, /**< object */
 } /* ecma_builtin_helper_def_prop */
 
 /**
- * @}
  * @}
  * @}
  */
diff --git a/jerry-core/ecma/operations/ecma-boolean-object.cpp b/jerry-core/ecma/operations/ecma-boolean-object.cpp
index ea4325cfe..104286704 100644
--- a/jerry-core/ecma/operations/ecma-boolean-object.cpp
+++ b/jerry-core/ecma/operations/ecma-boolean-object.cpp
@@ -71,3 +71,8 @@ ecma_op_create_boolean_object (ecma_value_t arg) /**< argument passed to the Boo
 
   return ecma_make_normal_completion_value (ecma_make_object_value (obj_p));
 } /* ecma_op_create_boolean_object */
+
+/**
+ * @}
+ * @}
+ */
diff --git a/jerry-core/ecma/operations/ecma-number-object.cpp b/jerry-core/ecma/operations/ecma-number-object.cpp
index bc15aff5a..8303ef682 100644
--- a/jerry-core/ecma/operations/ecma-number-object.cpp
+++ b/jerry-core/ecma/operations/ecma-number-object.cpp
@@ -70,3 +70,8 @@ ecma_op_create_number_object (ecma_value_t arg) /**< argument passed to the Numb
 
   return ecma_make_normal_completion_value (ecma_make_object_value (obj_p));
 } /* ecma_op_create_number_object */
+
+/**
+ * @}
+ * @}
+ */