diff --git a/public/src/client/topic/threadTools.js b/public/src/client/topic/threadTools.js
index 55f65c9129..0d10cd844c 100644
--- a/public/src/client/topic/threadTools.js
+++ b/public/src/client/topic/threadTools.js
@@ -105,7 +105,7 @@ define('forum/topic/threadTools', ['forum/topic/fork', 'forum/topic/move'], func
translator.translate(isLocked ? '[[topic:locked]]' : '[[topic:reply]]', function(translated) {
var className = isLocked ? 'fa-lock' : 'fa-reply';
- threadEl.find('[component="post/reply"]').html(' ' + translated);
+ threadEl.find('[component="post/reply"]').html(' ' + translated).attr('disabled', isLocked);
$('[component="topic/reply"]').attr('disabled', isLocked).html(isLocked ? ' ' + translated : translated);
});