diff --git a/cocos2d-ui/CCBReader/CCAnimationManager.m b/cocos2d-ui/CCBReader/CCAnimationManager.m
index cd288b4ac07..d868240245c 100644
--- a/cocos2d-ui/CCBReader/CCAnimationManager.m
+++ b/cocos2d-ui/CCBReader/CCAnimationManager.m
@@ -94,7 +94,7 @@ - (void)addNode:(CCNode*)node andSequences:(NSDictionary*)seq
 		{
 			if(seqProp.keyframes.count > 0)
 			{
-				CCBKeyframe * keyFrameZero = seqProp.keyframes[0];
+				CCBKeyframe __attribute__((unused)) *keyFrameZero = seqProp.keyframes[0];
 				NSAssert(keyFrameZero.time == 0.0f, @"The first keyframe should always be at time Zero.");
 			}
 			
diff --git a/cocos2d-ui/CCBReader/CCBReader.m b/cocos2d-ui/CCBReader/CCBReader.m
index bb8b6c31a7c..86cbc8b0568 100644
--- a/cocos2d-ui/CCBReader/CCBReader.m
+++ b/cocos2d-ui/CCBReader/CCBReader.m
@@ -159,7 +159,7 @@ static inline void alignBits(CCBReader *self)
 }
 
 
-static inline unsigned int readVariableLengthIntFromArray(const uint8_t* buffer, uint32_t * value) {
+static inline ptrdiff_t readVariableLengthIntFromArray(const uint8_t* buffer, uint32_t * value) {
     const uint8_t* ptr = buffer;
     uint32_t b;
     uint32_t result;