diff --git a/tests/content_visibility/delete_post_test.php b/tests/content_visibility/delete_post_test.php
index e0a2a3d402..99068729df 100644
--- a/tests/content_visibility/delete_post_test.php
+++ b/tests/content_visibility/delete_post_test.php
@@ -266,7 +266,7 @@ class phpbb_content_visibility_delete_post_test extends phpbb_database_test_case
 	*/
 	public function test_delete_post($forum_id, $topic_id, $post_id, $data, $is_soft, $reason, $expected_posts, $expected_topic, $expected_forum)
 	{
-		global $auth, $cache, $config, $db, $phpbb_container, $phpbb_root_path, $phpEx;
+		global $auth, $cache, $config, $db, $phpbb_container, $phpbb_dispatcher, $phpbb_root_path, $phpEx;
 
 		$config['search_type'] = 'phpbb_mock_search';
 		$cache = new phpbb_mock_cache;
@@ -283,6 +283,8 @@ class phpbb_content_visibility_delete_post_test extends phpbb_database_test_case
 			)));
 		$user = $this->getMock('\phpbb\user');
 
+		$phpbb_dispatcher = new phpbb_mock_event_dispatcher();
+
 		$phpbb_container = new phpbb_mock_container_builder();
 		$phpbb_container->set('notification_manager', new phpbb_mock_notification_manager());
 		$phpbb_container->set('content.visibility', new \phpbb\content_visibility($auth, $db, $user, $phpbb_root_path, $phpEx, FORUMS_TABLE, POSTS_TABLE, TOPICS_TABLE, USERS_TABLE));