diff --git a/tests/phpunit/api/v4/Entity/GroupTest.php b/tests/phpunit/api/v4/Entity/GroupTest.php
index 2e95889c6879..a443113d0e40 100644
--- a/tests/phpunit/api/v4/Entity/GroupTest.php
+++ b/tests/phpunit/api/v4/Entity/GroupTest.php
@@ -225,6 +225,7 @@ public function testGetParents() {
       ->addSelect('id', 'child_group.id', 'child_group.title')
       ->addJoin('Group AS child_group', 'INNER', 'GroupNesting', ['id', '=', 'child_group.parent_group_id'])
       ->addOrderBy('id')
+      ->addOrderBy('child_group.id')
       ->execute();
 
     $this->assertCount(3, $joined);