diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 6f710df16..5c461d186 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -1,5 +1,7 @@
 <?php
 
+declare(strict_types=1);
+
 /**
  * SPDX-FileCopyrightText: 2017 Nextcloud GmbH and Nextcloud contributors
  * SPDX-License-Identifier: AGPL-3.0-or-later
@@ -9,7 +11,7 @@
 require_once __DIR__ . '/../../../lib/base.php';
 require_once __DIR__ . '/../vendor/autoload.php';
 
-\OC::$composerAutoloader->addPsr4('Tests\\', OC::$SERVERROOT . '/tests/unit/', true);
+require_once __DIR__ . '/../../../tests/autoload.php';
 
 \OC_App::loadApp('circles');