diff --git a/AFNetworking/AFJSONRequestOperation.m b/AFNetworking/AFJSONRequestOperation.m
index 8fd0de0..51d407a 100644
--- a/AFNetworking/AFJSONRequestOperation.m
+++ b/AFNetworking/AFJSONRequestOperation.m
@@ -45,7 +45,7 @@ static dispatch_queue_t json_request_operation_processing_queue() {
                                                     success:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, id JSON))success 
                                                     failure:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id JSON))failure
 {
-    AFJSONRequestOperation *requestOperation = [[self alloc] initWithRequest:urlRequest];
+    AFJSONRequestOperation *requestOperation = [(AFJSONRequestOperation *)[self alloc] initWithRequest:urlRequest];
     [requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
         if (success) {
             success(operation.request, operation.response, responseObject);
diff --git a/AFNetworking/AFPropertyListRequestOperation.m b/AFNetworking/AFPropertyListRequestOperation.m
index d454389..56e4e4d 100644
--- a/AFNetworking/AFPropertyListRequestOperation.m
+++ b/AFNetworking/AFPropertyListRequestOperation.m
@@ -47,7 +47,7 @@ static dispatch_queue_t property_list_request_operation_processing_queue() {
                                                                     success:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, id propertyList))success
                                                                     failure:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, id propertyList))failure
 {
-    AFPropertyListRequestOperation *requestOperation = [[self alloc] initWithRequest:request];
+    AFPropertyListRequestOperation *requestOperation = [(AFPropertyListRequestOperation *)[self alloc] initWithRequest:request];
     [requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
         if (success) {
             success(operation.request, operation.response, responseObject);
diff --git a/AFNetworking/AFURLConnectionOperation.m b/AFNetworking/AFURLConnectionOperation.m
index 27fd7de..ac6bfd3 100644
--- a/AFNetworking/AFURLConnectionOperation.m
+++ b/AFNetworking/AFURLConnectionOperation.m
@@ -691,7 +691,7 @@ didReceiveResponse:(NSURLResponse *)response
 #pragma mark - NSCopying
 
 - (id)copyWithZone:(NSZone *)zone {
-    AFURLConnectionOperation *operation = [[[self class] allocWithZone:zone] initWithRequest:self.request];
+    AFURLConnectionOperation *operation = [(AFURLConnectionOperation *)[[self class] allocWithZone:zone] initWithRequest:self.request];
             
     operation.uploadProgress = self.uploadProgress;
     operation.downloadProgress = self.downloadProgress;
diff --git a/AFNetworking/AFXMLRequestOperation.m b/AFNetworking/AFXMLRequestOperation.m
index fdb3906..d50cdfd 100644
--- a/AFNetworking/AFXMLRequestOperation.m
+++ b/AFNetworking/AFXMLRequestOperation.m
@@ -52,7 +52,7 @@ static dispatch_queue_t xml_request_operation_processing_queue() {
                                                         success:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, NSXMLParser *XMLParser))success
                                                         failure:(void (^)(NSURLRequest *request, NSHTTPURLResponse *response, NSError *error, NSXMLParser *XMLParser))failure
 {
-    AFXMLRequestOperation *requestOperation = [[self alloc] initWithRequest:urlRequest];
+    AFXMLRequestOperation *requestOperation = [(AFXMLRequestOperation *)[self alloc] initWithRequest:urlRequest];
     [requestOperation setCompletionBlockWithSuccess:^(AFHTTPRequestOperation *operation, id responseObject) {
         if (success) {
             success(operation.request, operation.response, responseObject);