diff --git a/src/config.h b/src/config.h
index 7baea9905..e03cc7855 100644
--- a/src/config.h
+++ b/src/config.h
@@ -104,4 +104,10 @@
  */
 #define CONFIG_ECMA_EXCEPTION_SUPPORT
 
+/**
+ * Link Global Environment to an empty declarative lexical environment
+ * instead of lexical environment bound to Global Object.
+ */
+// #define CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE
+
 #endif /* !CONFIG_H */
diff --git a/src/libecmaoperations/ecma-lex-env.c b/src/libecmaoperations/ecma-lex-env.c
index e51815ced..19cd26291 100644
--- a/src/libecmaoperations/ecma-lex-env.c
+++ b/src/libecmaoperations/ecma-lex-env.c
@@ -498,7 +498,12 @@ ecma_op_initialize_immutable_binding (ecma_object_t *lex_env_p, /**< lexical env
 ecma_object_t*
 ecma_op_create_global_environment (ecma_object_t *glob_obj_p) /**< the Global object */
 {
+#ifdef CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE
+  (void) glob_obj_p;
+  ecma_object_t *glob_env_p = ecma_create_decl_lex_env (NULL);
+#else /* !CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE */
   ecma_object_t *glob_env_p = ecma_create_object_lex_env (NULL, glob_obj_p, false);
+#endif /* !CONFIG_ECMA_GLOBAL_ENVIRONMENT_DECLARATIVE */
 
   return glob_env_p;
 } /* ecma_op_create_global_environment */