diff --git a/src/Symfony/Component/HttpFoundation/JsonResponse.php b/src/Symfony/Component/HttpFoundation/JsonResponse.php
index fa80c68858..b941b46e84 100644
--- a/src/Symfony/Component/HttpFoundation/JsonResponse.php
+++ b/src/Symfony/Component/HttpFoundation/JsonResponse.php
@@ -26,7 +26,10 @@ class JsonResponse extends Response
 {
     protected $data;
     protected $callback;
-    protected $encodingOptions;
+
+    // Encode <, >, ', &, and " for RFC4627-compliant JSON, which may also be embedded into HTML.
+    // 15 === JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT
+    protected $encodingOptions = 15;
 
     /**
      * Constructor.
@@ -43,9 +46,6 @@ class JsonResponse extends Response
             $data = new \ArrayObject();
         }
 
-        // Encode <, >, ', &, and " for RFC4627-compliant JSON, which may also be embedded into HTML.
-        $this->encodingOptions = JSON_HEX_TAG | JSON_HEX_APOS | JSON_HEX_AMP | JSON_HEX_QUOT;
-
         $this->setData($data);
     }