diff --git a/SDWebImage/SDWebImageCompat.h b/SDWebImage/SDWebImageCompat.h
index ce068071..81ca2211 100644
--- a/SDWebImage/SDWebImageCompat.h
+++ b/SDWebImage/SDWebImageCompat.h
@@ -87,15 +87,11 @@ typedef void(^SDWebImageNoParamsBlock)(void);
 
 FOUNDATION_EXPORT NSString *const SDWebImageErrorDomain;
 
-#ifndef dispatch_queue_async_safe
-#define dispatch_queue_async_safe(queue, block)\
-    if (strcmp(dispatch_queue_get_label(DISPATCH_CURRENT_QUEUE_LABEL), dispatch_queue_get_label(queue)) == 0) {\
+#ifndef dispatch_main_async_safe
+#define dispatch_main_async_safe(block)\
+    if (dispatch_queue_get_label(DISPATCH_CURRENT_QUEUE_LABEL) == dispatch_queue_get_label(dispatch_get_main_queue())) {\
         block();\
     } else {\
-        dispatch_async(queue, block);\
+        dispatch_async(dispatch_get_main_queue(), block);\
     }
 #endif
-
-#ifndef dispatch_main_async_safe
-#define dispatch_main_async_safe(block) dispatch_queue_async_safe(dispatch_get_main_queue(), block)
-#endif