diff --git a/en/views/json-and-xml-views.rst b/en/views/json-and-xml-views.rst
index 5d67aa5818..65fe88e8d9 100644
--- a/en/views/json-and-xml-views.rst
+++ b/en/views/json-and-xml-views.rst
@@ -164,6 +164,13 @@ customize the bit-mask used to generate JSON. See the
 `json_encode <http://php.net/json_encode>`_ documentation for the valid
 values of this option.
 
+For example, to serialize validation error output of CakePHP entities in a consistent form of JSON do::
+
+    // In your controller's action when saving failed
+    $this->set('errors', $articles->errors());
+    $this->set('_jsonOptions', JSON_FORCE_OBJECT);
+    $this->set('_serialize', ['errors']);
+
 JSONP Responses
 ---------------