diff --git a/app/views/files/_tag_yun.html.erb b/app/views/files/_tag_yun.html.erb
index 4889e538d..41ae5f335 100644
--- a/app/views/files/_tag_yun.html.erb
+++ b/app/views/files/_tag_yun.html.erb
@@ -1,6 +1,6 @@
-<% if course %>
+<% if course && tag_list.empty? == false%>
- 全部
<% end %>