diff --git a/plugins/Proxy/Controller.php b/plugins/Proxy/Controller.php
index a55ea0cc24ff9b7c990a1f41c02d40e5c1c35727..550078e2d73d2e5427e9f314e4b79095f9cf98f3 100644
--- a/plugins/Proxy/Controller.php
+++ b/plugins/Proxy/Controller.php
@@ -78,7 +78,7 @@ class Controller extends \Piwik\Plugin\Controller
     public function redirect()
     {
         $url = Common::getRequestVar('url', '', 'string', $_GET);
-	if (!UrlHelper::isLookLikeUrl($url)) {
+        if (!UrlHelper::isLookLikeUrl($url)) {
             die('Please check the &url= parameter: it should to be a valid URL');
         }
         // validate referrer