diff --git a/app/views/messages/_common_reply_box.html.erb b/app/views/messages/_common_reply_box.html.erb
index f8457f057..c2313c569 100644
--- a/app/views/messages/_common_reply_box.html.erb
+++ b/app/views/messages/_common_reply_box.html.erb
@@ -93,11 +93,11 @@
                   <% end %>
                   <span class="ml5 mr5 color-grey">|</span>
                   <%= link_to(
-                              '<i class="fa fa-comments-o mr5"></i>回复'.html_safe,
+                              '<i class="fa fa-mail-reply mr5"></i>回复'.html_safe,
                               {:controller => 'users' ,:action => 'reply_to',:reply_id => comment.id, :type => activity.class.to_s, :user_activity_id => activity.id},
                               :remote => true,
                               :method => 'get',
-                              :title => l(:button_reply)) %>
+                              :title => l(:button_reply),:class => "color-grey") %>
                   <span class="ml5 mr5 color-grey">|</span>
                   <span class="reply_praise_count_<%= comment.id %>">
                             <%=render :partial=> "praise_tread/edu_praise", :locals => {:activity=>comment, :user_activity_id=>comment.id,:type=>"reply"}%>