diff --git a/library/Icinga/Web/Controller/ActionController.php b/library/Icinga/Web/Controller/ActionController.php
index 797ace2e4..f0e53523f 100644
--- a/library/Icinga/Web/Controller/ActionController.php
+++ b/library/Icinga/Web/Controller/ActionController.php
@@ -41,6 +41,11 @@ use Icinga\Web\Window;
  */
 class ActionController extends Zend_Controller_Action
 {
+    /**
+     * The login route to use when requiring authentication
+     */
+    const LOGIN_ROUTE = 'authentication/login';
+
     /**
      * Whether the controller requires the user to be authenticated
      *
@@ -370,7 +375,7 @@ class ActionController extends Zend_Controller_Action
      */
     protected function redirectToLogin($redirect = null)
     {
-        $login = Url::fromPath('authentication/login');
+        $login = Url::fromPath(static::LOGIN_ROUTE);
         if ($this->isXhr()) {
             if ($redirect !== null) {
                 $login->setParam('redirect', '__SELF__');