diff --git a/AFNetworking/AFHTTPClient.h b/AFNetworking/AFHTTPClient.h
index 398bb10..4c27c93 100644
--- a/AFNetworking/AFHTTPClient.h
+++ b/AFNetworking/AFHTTPClient.h
@@ -142,7 +142,7 @@ typedef enum {
  Default SSL pinning mode for each `AFHTTPRequestOperation` which will be enqueued with `enqueueHTTPRequestOperation:`.
  */
 #ifdef _AFNETWORKING_PIN_SSL_CERTIFICATES_
-@property (nonatomic, assign) AFURLConnectionOperationSSLPinningMode defaultSSLPinMode;
+@property (nonatomic, assign) AFURLConnectionOperationSSLPinningMode defaultSSLPinningMode;
 #endif
 
 ///---------------------------------------------
diff --git a/AFNetworking/AFHTTPClient.m b/AFNetworking/AFHTTPClient.m
index d4c4042..88ec1cb 100644
--- a/AFNetworking/AFHTTPClient.m
+++ b/AFNetworking/AFHTTPClient.m
@@ -533,6 +533,9 @@ static void AFNetworkReachabilityReleaseCallback(const void *info) {
     [operation setCompletionBlockWithSuccess:success failure:failure];
 
     operation.credential = self.defaultCredential;
+#ifdef _AFNETWORKING_PIN_SSL_CERTIFICATES_
+    operation.SSLPinningMode = self.defaultSSLPinningMode;
+#endif
 
     return operation;
 }
@@ -540,10 +543,6 @@ static void AFNetworkReachabilityReleaseCallback(const void *info) {
 #pragma mark -
 
 - (void)enqueueHTTPRequestOperation:(AFHTTPRequestOperation *)operation {
-#ifdef _AFNETWORKING_PIN_SSL_CERTIFICATES_
-    operation.SSLPinningMode = self.defaultSSLPinMode;
-#endif
-    
     [self.operationQueue addOperation:operation];
 }