diff --git a/app/views/memos/show.html.erb b/app/views/memos/show.html.erb
index d684b4297..95059e21d 100644
--- a/app/views/memos/show.html.erb
+++ b/app/views/memos/show.html.erb
@@ -90,7 +90,7 @@
       </div>
       <div class="homepagePostReplyDes">
         <div class="homepagePostReplyPublisher"><a href="<%=user_path(reply.author)%>" class="newsBlue mr10 f14"><%= reply.author.name%></a><%=  format_date(reply.created_at) %></div>
-        <div class="homepagePostReplyContent break_word"  id="activity_description_<%= reply.id %>"><%= h reply.content.html_safe%></div>
+        <div class="homepagePostReplyContent break_word"  id="activity_description_<%= reply.id %>"><%= h reply.content.html_safe %></div>
       </div>
       <script type="text/javascript">
           $(function(){
@@ -100,6 +100,8 @@
                   postContent= postContent.replace(/ {2}/g,"&nbsp; ");
                   postContent=postContent.replace(/&nbsp; &nbsp;/g,"&nbsp;&nbsp;&nbsp;");
                   postContent=postContent.replace(/&nbsp;  /g,"&nbsp;&nbsp; ");
+                  postContent = postContent.gsub(/<script>*/, "<script>");
+                  postContent = postContent.gsub(/<html>*/, "<html>");
                   $(this).html(postContent);
               });
               autoUrl('activity_description_<%= reply.id %>');
