diff --git a/app/views/files/_tag_yun.html.erb b/app/views/files/_tag_yun.html.erb
index 41ae5f335..3d1ded552 100644
--- a/app/views/files/_tag_yun.html.erb
+++ b/app/views/files/_tag_yun.html.erb
@@ -1,4 +1,4 @@
-<% if course && tag_list.empty? == false%>
+<% if course && tag_list && tag_list.empty? == false%>
 <span class="files_tag_icon" >
           <a  title=""
               onclick="search_tag_attachment('<%= search_tag_attachment_course_files_path(course)%>','','<%= @q%>','<%= course.id%>');"