diff --git a/app/assets/javascripts/app/views/ticket_zoom/article_new.jst.eco b/app/assets/javascripts/app/views/ticket_zoom/article_new.jst.eco
index 0e6cb1065..94e332607 100644
--- a/app/assets/javascripts/app/views/ticket_zoom/article_new.jst.eco
+++ b/app/assets/javascripts/app/views/ticket_zoom/article_new.jst.eco
@@ -2,6 +2,7 @@
   <input type="hidden" name="type" value="<%= @article.type %>">
   <input type="hidden" name="internal" value="<%= @article.internal %>">
   <input type="hidden" name="form_id" value="<%= @article.form_id %>">
+  <input type="hidden" name="in_reply_to" value="<%= @article.in_reply_to %>">
   <div class="editControls">
     <div class="js-avatar"></div>
     <div class="editControls-item is-hidden pop-select">