diff --git a/src/ThumbnailProvider.php b/src/ThumbnailProvider.php
index 162cfcb..5c730df 100644
--- a/src/ThumbnailProvider.php
+++ b/src/ThumbnailProvider.php
@@ -33,7 +33,7 @@ function ($app) {
 
     public function connect(Application $app)
     {
-        // creates a new controller based on the default route
+        /** @var \Silex\ControllerCollection $controllers */
         $controllers = $app['controllers_factory'];
 
         $controllers->get(
@@ -51,7 +51,8 @@ function (Application $app) {
                     $app->pass();
                 }
             }
-        )->assert('thumb', '.+');
+        )->assert('thumb', '.+')
+        ->bind('thumb');
 
         return $controllers;
     }