diff --git a/cocos/base/CCUserDefault.h b/cocos/base/CCUserDefault.h
index 052dbee5d7..740fbb127f 100644
--- a/cocos/base/CCUserDefault.h
+++ b/cocos/base/CCUserDefault.h
@@ -245,7 +245,7 @@ public:
 
 protected:
     UserDefault();
-    ~UserDefault();
+    virtual ~UserDefault();
     
 private: