diff --git a/SDWebImage/UIImage+GIF.m b/SDWebImage/UIImage+GIF.m
index e6d8577d..bf74a367 100755
--- a/SDWebImage/UIImage+GIF.m
+++ b/SDWebImage/UIImage+GIF.m
@@ -32,8 +32,9 @@
 
         for (size_t i = 0; i < count; i++) {
             CGImageRef image = CGImageSourceCreateImageAtIndex(source, i, NULL);
-            if (!image)
+            if (!image) {
                 continue;
+            }
 
             duration += [self sd_frameDurationAtIndex:i source:source];