diff --git a/jerry-core/api/jerry.c b/jerry-core/api/jerry.c
index 813aa6c13..b386cf3d0 100644
--- a/jerry-core/api/jerry.c
+++ b/jerry-core/api/jerry.c
@@ -191,7 +191,7 @@ jerry_init (jerry_init_flag_t flags) /**< combination of Jerry flags */
   JERRY_ASSERT (!(JERRY_CONTEXT (status_flags) & ECMA_STATUS_API_AVAILABLE));
 
   /* Zero out all non-external members. */
-  memset (&JERRY_CONTEXT (JERRY_CONTEXT_FIRST_MEMBER), 0,
+  memset ((char *) &JERRY_CONTEXT_STRUCT + offsetof (jerry_context_t, JERRY_CONTEXT_FIRST_MEMBER), 0,
           sizeof (jerry_context_t) - offsetof (jerry_context_t, JERRY_CONTEXT_FIRST_MEMBER));
 
   JERRY_CONTEXT (jerry_init_flags) = flags;
diff --git a/jerry-core/jcontext/jcontext.h b/jerry-core/jcontext/jcontext.h
index a2ce3b49f..9f949014a 100644
--- a/jerry-core/jcontext/jcontext.h
+++ b/jerry-core/jcontext/jcontext.h
@@ -245,6 +245,7 @@ struct jerry_context_t
  * This part is for JerryScript which uses external context.
  */
 
+#define JERRY_CONTEXT_STRUCT (*jerry_port_get_current_context ())
 #define JERRY_CONTEXT(field) (jerry_port_get_current_context ()->field)
 
 #if !ENABLED (JERRY_SYSTEM_ALLOCATOR)
@@ -274,6 +275,11 @@ struct jmem_heap_t
  */
 extern jerry_context_t jerry_global_context;
 
+/**
+ * Config-independent name for context.
+ */
+#define JERRY_CONTEXT_STRUCT (jerry_global_context)
+
 /**
  * Provides a reference to a field in the current context.
  */