diff --git a/library/language/source/main.php b/library/language/source/main.php
index ffc0e2091..0a93ac453 100644
--- a/library/language/source/main.php
+++ b/library/language/source/main.php
@@ -2825,6 +2825,7 @@ $lang['LOG_ACTION']['LOG_TYPE'] = [
     'mod_topic_tor_unregister' => 'Topic:<br /> <b>torrent unregistered</b>',
     'mod_topic_tor_register' => 'Topic:<br /> <b>torrent registered</b>',
     'mod_topic_tor_delete' => 'Topic:<br /> <b>torrent deleted</b>',
+    'mod_topic_attach_updated' => 'Topic:<br /> <b>attachment updated</b>',
     'mod_topic_renamed' => 'Topic:<br /> <b>renamed</b>',
     'mod_post_delete' => 'Post:<br /> <b>deleted</b>',
     'mod_post_pin' => 'Post:<br /> <b>pinned</b>',