diff --git a/AFNetworking/AFURLSessionManager.m b/AFNetworking/AFURLSessionManager.m
index 5dc391c02e..de447aea99 100644
--- a/AFNetworking/AFURLSessionManager.m
+++ b/AFNetworking/AFURLSessionManager.m
@@ -744,7 +744,7 @@ - (void)addNotificationObserverForTask:(NSURLSessionTask *)task {
 }
 
 - (void)removeNotificationObserverForTask:(NSURLSessionTask *)task {
-    [[NSNotificationCenter defaultCenter] removeObserver:self name:AFNSURLSessionTaskDidResumeNotification object:task];
+    [[NSNotificationCenter defaultCenter] removeObserver:self name:AFNSURLSessionTaskDidSuspendNotification object:task];
     [[NSNotificationCenter defaultCenter] removeObserver:self name:AFNSURLSessionTaskDidResumeNotification object:task];
 }