diff --git a/lib/Hooks.php b/lib/Hooks.php
index 5007f435f..07b4cfd2f 100755
--- a/lib/Hooks.php
+++ b/lib/Hooks.php
@@ -48,7 +48,7 @@ static public function deleteUser($params) {
 	 */
 	static protected function deleteUserStream($user) {
 		// Delete activity entries
-		$app = new Application();
+		$app = \OC::$server->query(Application::class);
 		/** @var Data $activityData */
 		$activityData = $app->getContainer()->query(Data::class);
 		$activityData->deleteActivities(array('affecteduser' => $user));