diff --git a/controllers/DefaultController.php b/controllers/DefaultController.php
index c24f916..2d3c69a 100644
--- a/controllers/DefaultController.php
+++ b/controllers/DefaultController.php
@@ -35,8 +35,7 @@ public function actionIndex()
      */
     public function actionJson()
     {
-        \Yii::$app->response->format = Response::FORMAT_JSON;
-        echo $this->getContent();
+        return $this->getContent();
     }