diff --git a/app/controllers/resources/room_request.php b/app/controllers/resources/room_request.php
index ca483d9630171efd692fc41cb3b9a973753d9d35..af5958aca814cb44c28d5db8351fb73eb5490f55 100644
--- a/app/controllers/resources/room_request.php
+++ b/app/controllers/resources/room_request.php
@@ -21,6 +21,8 @@
  */
 class Resources_RoomRequestController extends AuthenticatedController
 {
+    protected $filter;
+
     public function before_filter(&$action, &$args)
     {
         parent::before_filter($action, $args);
diff --git a/app/controllers/studip_controller.php b/app/controllers/studip_controller.php
index a85e427e9f52eec31b6a57b5769a626738b42151..2966f3c02f191b16aa9fb9bc8c6fac9e8f616859 100644
--- a/app/controllers/studip_controller.php
+++ b/app/controllers/studip_controller.php
@@ -234,7 +234,7 @@ abstract class StudipController extends Trails_Controller
 
                     $arg = $sorm;
                     if ($this->_autobind) {
-                        $this->{$info['var']} =& $arg;
+                        $this->{$info['var']} = $arg;
                     }
                     break;