diff --git a/ZCAnimatedLabel/ZCAnimatedLabel/ZCCoreTextLayout.m b/ZCAnimatedLabel/ZCAnimatedLabel/ZCCoreTextLayout.m
index 96b3ff3..3a71df2 100644
--- a/ZCAnimatedLabel/ZCAnimatedLabel/ZCCoreTextLayout.m
+++ b/ZCAnimatedLabel/ZCAnimatedLabel/ZCCoreTextLayout.m
@@ -118,7 +118,7 @@ - (void) layoutWithAttributedString: (NSAttributedString *) attributedString con
     
     self.estimatedSize = s;
     
-    frameRect = CGRectMake(0, 0, s.width, s.height);
+    frameRect = CGRectMake(0, 0, size.width, size.height);
     CGPathRef framePath = CGPathCreateWithRect(frameRect, NULL);
     ctFrame = CTFramesetterCreateFrame(framesetter, rangeAll, framePath, NULL);
     CGPathRelease(framePath);