diff --git a/AFNetworking/AFURLConnectionOperation.m b/AFNetworking/AFURLConnectionOperation.m
index 17c98c9..fa4b488 100644
--- a/AFNetworking/AFURLConnectionOperation.m
+++ b/AFNetworking/AFURLConnectionOperation.m
@@ -550,8 +550,8 @@ didReceiveAuthenticationChallenge:(NSURLAuthenticationChallenge *)challenge
         if ([challenge previousFailureCount] == 0) {
             NSURLCredential *credential = nil;
 
-            NSString *username = (__bridge_transfer NSString *)CFURLCopyUserName((__bridge CFURLRef)[self.request URL]);
-            NSString *password = (__bridge_transfer NSString *)CFURLCopyPassword((__bridge CFURLRef)[self.request URL]);
+            NSString *username = [[self.request URL] user];
+            NSString *password = [[self.request URL] password];
 
             if (username && password) {
                 credential = [NSURLCredential credentialWithUser:username password:password persistence:NSURLCredentialPersistenceNone];