diff --git a/Web/static/js/al_comments.js b/Web/static/js/al_comments.js
index 6f36730b..f4172428 100644
--- a/Web/static/js/al_comments.js
+++ b/Web/static/js/al_comments.js
@@ -8,6 +8,6 @@ u(".comment-reply").on("click", function(e) {
     let mention   = ("[" + (fromGroup ? "club" : "id") + authorId + "|" + authorNm + "], ");
     
     // Substitute pervious mention if present, prepend otherwise
-    inputbox.nodes[0].value = s.nodes[0].value.replace(/(^\[([A-Za-z0-9]+)\|([\p{L} 0-9@]+)\], |^)/u, mention);
+    inputbox.nodes[0].value = inputbox.nodes[0].value.replace(/(^\[([A-Za-z0-9]+)\|([\p{L} 0-9@]+)\], |^)/u, mention);
     inputbox.trigger("focusin");
 });