diff --git a/cocos2dx/platform/ios/CCDirectorCaller.mm b/cocos2dx/platform/ios/CCDirectorCaller.mm
index b39373449e..4fcb32fbed 100644
--- a/cocos2dx/platform/ios/CCDirectorCaller.mm
+++ b/cocos2dx/platform/ios/CCDirectorCaller.mm
@@ -51,6 +51,7 @@ static id s_sharedDirectorCaller;
 +(void) destroy
 {
     [s_sharedDirectorCaller release];
+    s_sharedDirectorCaller = nil;
 }
 
 -(void) alloc