diff --git a/CHANGELOG.md b/CHANGELOG.md
index 009c2a3d..e4674c82 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -6,6 +6,7 @@
 **Merged pull requests:**
 
 - Release v2.1.5-2023.09 🎉
+- Added missing !defined('BB_ROOT') check [\#274](https://github.com/torrentpier/torrentpier-lts/pull/274) ([belomaxorka](https://github.com/belomaxorka))
 - Exclude padding files [\#260](https://github.com/torrentpier/torrentpier-lts/pull/260) ([belomaxorka](https://github.com/belomaxorka), [kovalensky](https://github.com/kovalensky))
 - Added missing translation in admin_ug_auth [\#254](https://github.com/torrentpier/torrentpier-lts/pull/254) ([belomaxorka](https://github.com/belomaxorka))
 - Support for IDN domains [\#252](https://github.com/torrentpier/torrentpier-lts/pull/252) ([belomaxorka](https://github.com/belomaxorka), [kovalensky](https://github.com/kovalensky))
diff --git a/library/includes/ucp/topic_watch.php b/library/includes/ucp/topic_watch.php
index 8f61cb82..88c761bb 100644
--- a/library/includes/ucp/topic_watch.php
+++ b/library/includes/ucp/topic_watch.php
@@ -1,5 +1,7 @@
 <?php
 
+if (!defined('BB_ROOT')) die(basename(__FILE__));
+
 if (!$bb_cfg['topic_notify_enabled'])
 {
 	bb_die($lang['DISABLED']);