diff --git a/app/views/users/_news_replies.html.erb b/app/views/users/_news_replies.html.erb
index 7ab441bc6..138efd16e 100644
--- a/app/views/users/_news_replies.html.erb
+++ b/app/views/users/_news_replies.html.erb
@@ -58,7 +58,7 @@
                         </span>
                         <% news = News.find(activity_id) %>
                         <%= link_to('删除', {:controller => 'comments', :action => 'destroy', :id => activity_id, :comment_id => comment, :user_activity_id => user_activity_id},
-                                  :remote => true, :confirm => l(:text_are_you_sure), :method => 'delete', :class => "fr mr20", :title => l(:button_delete)) if (User.current.allowed_to?(:manage_news, news.course) || User.current.allowed_to?(:manage_news, news.project)) %>
+                                    :id => "delete_reply_#{activity_id}_#{comment.id}",:remote => true, :confirm => l(:text_are_you_sure), :method => 'delete', :class => "fr mr20 undis", :title => l(:button_delete)) if (User.current.allowed_to?(:manage_news, news.course) || User.current.allowed_to?(:manage_news, news.project)) %>
                     <% elsif type == 'Issue' %>
                         <span style="position: relative" class="fr mr20">
                             <%= link_to(