diff --git a/cocos2dx/platform/win32/CCStdC.h b/cocos2dx/platform/win32/CCStdC.h
index 7ad586ecdb..0092baf798 100644
--- a/cocos2dx/platform/win32/CCStdC.h
+++ b/cocos2dx/platform/win32/CCStdC.h
@@ -103,5 +103,9 @@ NS_CC_END
 #undef MessageBox
 #endif
 
+#ifdef RELATIVE
+#undef RELATIVE
+#endif
+
 #endif  // __CC_STD_C_H__