diff --git a/AFNetworking/UIImageView+AFNetworking.m b/AFNetworking/UIImageView+AFNetworking.m
index 88fd5ed..bd7f3c9 100644
--- a/AFNetworking/UIImageView+AFNetworking.m
+++ b/AFNetworking/UIImageView+AFNetworking.m
@@ -42,7 +42,7 @@ static NSString * const kUIImageViewImageRequestObjectKey = @"imageRequestOperat
 @implementation UIImageView (AFNetworking)
 
 - (AFHTTPRequestOperation *)imageRequestOperation {
-    return objc_getAssociatedObject(self, kUIImageViewImageRequestObjectKey);
+    return (AFHTTPRequestOperation *)objc_getAssociatedObject(self, kUIImageViewImageRequestObjectKey);
 }
 
 - (void)setImageRequestOperation:(AFImageRequestOperation *)imageRequestOperation {