diff --git a/AFNetworking/AFHTTPRequestOperation.m b/AFNetworking/AFHTTPRequestOperation.m
index 84f2bad..940b6e7 100644
--- a/AFNetworking/AFHTTPRequestOperation.m
+++ b/AFNetworking/AFHTTPRequestOperation.m
@@ -149,8 +149,8 @@ static void AFSwizzleClassMethodWithClassAndSelectorUsingBlock(Class klass, SEL
             [userInfo setValue:self.response forKey:AFNetworkingOperationFailingURLResponseErrorKey];
 
             if (![self hasAcceptableStatusCode]) {
-                NSUInteger statusCode = ([self.response isKindOfClass:[NSHTTPURLResponse class]]) ? (NSUInteger)[self.response statusCode] : 200;
-                [userInfo setValue:[NSString stringWithFormat:NSLocalizedStringFromTable(@"Expected status code in (%@), got %d", @"AFNetworking", nil), AFStringFromIndexSet([[self class] acceptableStatusCodes]), statusCode] forKey:NSLocalizedDescriptionKey];
+                NSInteger statusCode = ([self.response isKindOfClass:[NSHTTPURLResponse class]]) ? [self.response statusCode] : 200;
+                [userInfo setValue:[NSString stringWithFormat:NSLocalizedStringFromTable(@"Expected status code in (%@), got %ld", @"AFNetworking", nil), AFStringFromIndexSet([[self class] acceptableStatusCodes]), (long)statusCode] forKey:NSLocalizedDescriptionKey];
                 self.HTTPError = [[NSError alloc] initWithDomain:AFNetworkingErrorDomain code:NSURLErrorBadServerResponse userInfo:userInfo];
             } else if (![self hasAcceptableContentType]) {
                 // Don't invalidate content type if there is no content