diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 972e45933b..22eaad39b1 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -8,10 +8,10 @@
  */
 define('PHPUNIT_RUN', 1);
 
+require_once __DIR__ . '/../../../tests/autoload.php';
 require_once __DIR__ . '/../../../lib/base.php';
 require_once __DIR__ . '/../vendor/autoload.php';
 
-\OC::$loader->addValidRoot(OC::$SERVERROOT . '/tests');
 \OC_App::loadApp('mail');
 
 OC_Hook::clear();