diff --git a/tests/notification/submit_post_base.php b/tests/notification/submit_post_base.php
index 82ea9609c3..c0ef8f3caa 100644
--- a/tests/notification/submit_post_base.php
+++ b/tests/notification/submit_post_base.php
@@ -140,7 +140,7 @@ abstract class phpbb_notification_submit_post_base extends phpbb_database_test_c
 			new \phpbb\textformatter\s9e\mention_helper(
 				$this->db,
 				$auth,
-				$this->user,
+				$user,
 				$phpbb_root_path,
 				$phpEx
 			)