diff --git a/cocos2dx/platform/ios/EAGLView.h b/cocos2dx/platform/ios/EAGLView.h
index 5f10b7795e..64c83233ab 100755
--- a/cocos2dx/platform/ios/EAGLView.h
+++ b/cocos2dx/platform/ios/EAGLView.h
@@ -109,7 +109,7 @@ Copyright (C) 2008 Apple Inc. All Rights Reserved.
 @property(readwrite, copy) UITextRange *selectedTextRange;
 @property(nonatomic, readonly) id<UITextInputTokenizer> tokenizer;
 @property(nonatomic, readonly, getter = isKeyboardShown) BOOL isKeyboardShown;
-@property(nonatomic, retain) NSNotification* keyboardShowNotification;
+@property(nonatomic, copy) NSNotification* keyboardShowNotification;
 /** creates an initializes an EAGLView with a frame and 0-bit depth buffer, and a RGB565 color buffer */
 + (id) viewWithFrame:(CGRect)frame;
 /** creates an initializes an EAGLView with a frame, a color buffer format, and 0-bit depth buffer */
diff --git a/cocos2dx/platform/ios/EAGLView.mm b/cocos2dx/platform/ios/EAGLView.mm
index 693ad31fdf..52ddaac951 100755
--- a/cocos2dx/platform/ios/EAGLView.mm
+++ b/cocos2dx/platform/ios/EAGLView.mm
@@ -243,7 +243,7 @@ static EAGLView *view = 0;
 - (void) dealloc
 {
     [renderer_ release];
-    [self.keyboardShowNotification release];
+    self.keyboardShowNotification = NULL; // implicit release
     [super dealloc];
 }
 
@@ -825,7 +825,7 @@ static EAGLView *view = 0;
     cocos2d::CCIMEDispatcher* dispatcher = cocos2d::CCIMEDispatcher::sharedDispatcher();
     if (UIKeyboardWillShowNotification == type) 
     {
-        self.keyboardShowNotification = [notif copy];
+        self.keyboardShowNotification = notif; // implicit copy
         dispatcher->dispatchKeyboardWillShow(notiInfo);
     }
     else if (UIKeyboardDidShowNotification == type)