diff --git a/cocos/base/CCUserDefault.h b/cocos/base/CCUserDefault.h
index 6d98ee658e..e37532ce92 100644
--- a/cocos/base/CCUserDefault.h
+++ b/cocos/base/CCUserDefault.h
@@ -216,7 +216,7 @@ public:
     */
     static void setDelegate(UserDefault *delegate);
 
-    /* AES cbc128 encrypt support
+    /* AES cfb128 encrypt support
     ** @params:
     **   key: 16bytes key
     **   iv: 16bytes iv