diff --git a/Port/80251/port_80251.h b/Port/80251/port_80251.h
index a3b75cc3..0b7eb1af 100644
--- a/Port/80251/port_80251.h
+++ b/Port/80251/port_80251.h
@@ -43,8 +43,8 @@
 #define _MALLOC_MEM_ xdata
 #define _OBJ_MEM_    xdata
 #endif
-#define _RTC_MEM_    _STATIC_MEM_
-#define _DEBUG_MEM_  _STATIC_MEM_
+#define _RTC_MEM_    
+#define _DEBUG_MEM_  
 
 /* Register */
 #define _SYS_REG_