diff --git a/app/views/admin/pages/user_feed.html.erb b/app/views/admin/pages/user_feed.html.erb
index 08da481..fa3bfe9 100644
--- a/app/views/admin/pages/user_feed.html.erb
+++ b/app/views/admin/pages/user_feed.html.erb
@@ -50,7 +50,7 @@
 
         <li class="PublicUserProfile-detail">
           <i class="CDB-IconFont CDB-IconFont-calendar CDB-IconFont--withLabel"></i>
-          Member since <%= @viewed_user.created_at.strftime("%B %Y") %>
+          自 <%= @viewed_user.created_at.strftime("%B %Y") %> 起
         </li>
       </ul>
     </div>