diff --git a/app/views/courses/_set_join.js.erb b/app/views/courses/_set_join.js.erb
index 33caf5273..dbdf3d7f3 100644
--- a/app/views/courses/_set_join.js.erb
+++ b/app/views/courses/_set_join.js.erb
@@ -23,4 +23,6 @@
     <% else %>
 		alert("未知错误，请稍后再试");
 	<% end %>
+<% else %>
+    location.reload();
 <% end %>