diff --git a/controllers/DefaultController.php b/controllers/DefaultController.php
index 804d78a..21cbe93 100644
--- a/controllers/DefaultController.php
+++ b/controllers/DefaultController.php
@@ -33,6 +33,6 @@ public function actionIndex()
             $headers->add('Content-Encoding', 'gzip');
             $headers->add('Content-Length', strlen($sitemapData));
         }
-        echo $sitemapData;
+        return $sitemapData;
     }
 }