diff --git a/app/views/comments/_index_by_comment.html.erb b/app/views/comments/_index_by_comment.html.erb
index 6f7b13eae..b72e760dc 100644
--- a/app/views/comments/_index_by_comment.html.erb
+++ b/app/views/comments/_index_by_comment.html.erb
@@ -1,4 +1,4 @@
-<div class="comments-for-post">
+<div id="p-index-by-comment" class="comments-for-post">
   <div class="list-of-comments">
     <% @comments.each do |comment| %>
       <% if CurrentUser.is_moderator? || !comment.is_deleted? %>
diff --git a/app/views/comments/_index_by_post.html.erb b/app/views/comments/_index_by_post.html.erb
index 53847370e..a8966259a 100644
--- a/app/views/comments/_index_by_post.html.erb
+++ b/app/views/comments/_index_by_post.html.erb
@@ -1,4 +1,4 @@
-<div>
+<div id="p-index-by-post">
   <% if !CurrentUser.user.is_builder? %>
     <div style="margin-bottom: 1em;">
       <h2>Before commenting, read the <%= link_to "how to comment guide", wiki_pages_path(:search => {:title => "howto:comment"}) %>.</h2>