diff --git a/app/views/comments/_form.html.erb b/app/views/comments/_form.html.erb
index 47b6e8698..0c5b47949 100644
--- a/app/views/comments/_form.html.erb
+++ b/app/views/comments/_form.html.erb
@@ -1,4 +1,4 @@
-<%= simple_form_for(comment) do |f| %>
+<%= simple_form_for(comment, :html => {:class => "edit_comment"}) do |f| %>
   <%= dtext_field "comment", "body", :value => comment.body, :input_id => "comment_body_for_#{comment.id}", :preview_id => "dtext-preview-for-#{comment.id}" %>
   <%= f.button :submit, "Submit" %>
   <%= dtext_preview_button "comment", "body", :input_id => "comment_body_for_#{comment.id}", :preview_id => "dtext-preview-for-#{comment.id}" %>