diff --git a/AFNetworking/AFJSONRequestOperation.m b/AFNetworking/AFJSONRequestOperation.m
index bcdcb7f..dc4a542 100644
--- a/AFNetworking/AFJSONRequestOperation.m
+++ b/AFNetworking/AFJSONRequestOperation.m
@@ -109,7 +109,7 @@ static dispatch_queue_t json_request_operation_processing_queue() {
         
         if (self.error) {
             if (failure) {
-                dispatch_async(self.failureCallbackQueue ? self.failureCallbackQueue : dispatch_get_main_queue(), ^{
+                dispatch_async(self.failureCallbackQueue ?: dispatch_get_main_queue(), ^{
                     failure(self, self.error);
                 });
             }
@@ -119,13 +119,13 @@ static dispatch_queue_t json_request_operation_processing_queue() {
                 
                 if (self.JSONError) {
                     if (failure) {
-                        dispatch_async(self.failureCallbackQueue ? self.failureCallbackQueue : dispatch_get_main_queue(), ^{
+                        dispatch_async(self.failureCallbackQueue ?: dispatch_get_main_queue(), ^{
                             failure(self, self.error);
                         });
                     }
                 } else {
                     if (success) {
-                        dispatch_async(self.successCallbackQueue ? self.successCallbackQueue : dispatch_get_main_queue(), ^{
+                        dispatch_async(self.successCallbackQueue ? : dispatch_get_main_queue(), ^{
                             success(self, JSON);
                         });
                     }                    
diff --git a/AFNetworking/AFPropertyListRequestOperation.m b/AFNetworking/AFPropertyListRequestOperation.m
index ecca1af..f8fa064 100644
--- a/AFNetworking/AFPropertyListRequestOperation.m
+++ b/AFNetworking/AFPropertyListRequestOperation.m
@@ -118,7 +118,7 @@ static dispatch_queue_t property_list_request_operation_processing_queue() {
         
         if (self.error) {
             if (failure) {
-                dispatch_async(self.failureCallbackQueue ? self.failureCallbackQueue : dispatch_get_main_queue(), ^{
+                dispatch_async(self.failureCallbackQueue ?: dispatch_get_main_queue(), ^{
                     failure(self, self.error);
                 });
             }
@@ -128,13 +128,13 @@ static dispatch_queue_t property_list_request_operation_processing_queue() {
                 
                 if (self.propertyListError) {
                     if (failure) {
-                        dispatch_async(self.failureCallbackQueue ? self.failureCallbackQueue : dispatch_get_main_queue(), ^{
+                        dispatch_async(self.failureCallbackQueue ?: dispatch_get_main_queue(), ^{
                             failure(self, self.error);
                         });
                     }
                 } else {
                     if (success) {
-                        dispatch_async(self.successCallbackQueue ? self.successCallbackQueue : dispatch_get_main_queue(), ^{
+                        dispatch_async(self.successCallbackQueue ?: dispatch_get_main_queue(), ^{
                             success(self, propertyList);
                         });
                     } 
diff --git a/AFNetworking/AFXMLRequestOperation.m b/AFNetworking/AFXMLRequestOperation.m
index f40cacb..f71efd8 100644
--- a/AFNetworking/AFXMLRequestOperation.m
+++ b/AFNetworking/AFXMLRequestOperation.m
@@ -159,13 +159,13 @@ static dispatch_queue_t xml_request_operation_processing_queue() {
             
             if (self.error) {
                 if (failure) {
-                    dispatch_async(self.failureCallbackQueue ? self.failureCallbackQueue : dispatch_get_main_queue(), ^{
+                    dispatch_async(self.failureCallbackQueue ?: dispatch_get_main_queue(), ^{
                         failure(self, self.error);
                     });
                 }
             } else {
                 if (success) {
-                    dispatch_async(self.successCallbackQueue ? self.successCallbackQueue : dispatch_get_main_queue(), ^{
+                    dispatch_async(self.successCallbackQueue ?: dispatch_get_main_queue(), ^{
                         success(self, XMLParser);
                     });
                 }