diff --git a/cocos/2d/CCLabelTTF.cpp b/cocos/2d/CCLabelTTF.cpp
index e59caa4285..c7e85ebd38 100644
--- a/cocos/2d/CCLabelTTF.cpp
+++ b/cocos/2d/CCLabelTTF.cpp
@@ -280,9 +280,8 @@ const Size& LabelTTF::getContentSize() const
 
 Rect LabelTTF::getBoundingBox() const
 {
-    Size size = getContentSize();
-    Rect rect = Node::getBoundingBox();
-    return rect;
+	const_cast<LabelTTF*>(this)->setContentSize(_renderLabel->getContentSize());
+	return Node::getBoundingBox();
 }
 
 #if defined(__GNUC__) && ((__GNUC__ >= 4) || ((__GNUC__ == 3) && (__GNUC_MINOR__ >= 1)))