diff --git a/app/controllers/admin/install.php b/app/controllers/admin/install.php
index dba8ac0bc12eeedff9015edf1bc2fe770642034e..03c9511760b881b4e4267d11251ea4af85716953 100644
--- a/app/controllers/admin/install.php
+++ b/app/controllers/admin/install.php
@@ -1,5 +1,5 @@
 <?php
-require_once __DIR__ . '/studip_controller_properties_trait.php';
+require_once __DIR__ . '/../studip_controller_properties_trait.php';
 
 class Admin_InstallController extends Trails_Controller
 {
diff --git a/app/controllers/studip_controller.php b/app/controllers/studip_controller.php
index 322faa237d8f14d7f5e2c489a124ba166c50e968..a85e427e9f52eec31b6a57b5769a626738b42151 100644
--- a/app/controllers/studip_controller.php
+++ b/app/controllers/studip_controller.php
@@ -9,8 +9,8 @@
  * the License, or (at your option) any later version.
  */
 
-require_once __DIR__ . '/studip_controller_properties_trait.php';
-require_once __DIR__ . '/studip_response.php';
+require_once 'studip_controller_properties_trait.php';
+require_once 'studip_response.php';
 
 abstract class StudipController extends Trails_Controller
 {