diff --git a/tests/bootstrap.php b/tests/bootstrap.php
index 4b03aa246b..875ec8ab7d 100644
--- a/tests/bootstrap.php
+++ b/tests/bootstrap.php
@@ -3,6 +3,7 @@
  * This file is loaded by PHPUnit before any test.
  */
 
+use Friendica\App;
 use PHPUnit\DbUnit\DataSet\YamlDataSet;
 use PHPUnit\DbUnit\TestCaseTrait;
 use PHPUnit\Framework\TestCase;