diff --git a/SDWebImageDownloader.m b/SDWebImageDownloader.m
index 7ee9c4c3..f1145534 100644
--- a/SDWebImageDownloader.m
+++ b/SDWebImageDownloader.m
@@ -118,6 +118,7 @@ NSString *const SDWebImageDownloadStopNotification = @"SDWebImageDownloadStopNot
                                                         code:[((NSHTTPURLResponse *)response) statusCode]
                                                     userInfo:nil];
             [delegate performSelector:@selector(imageDownloader:didFailWithError:) withObject:self withObject:error];
+            SDWIRelease(error);
         }
 
         self.connection = nil;