diff --git a/app/views/wechats/user_activities.html.erb b/app/views/wechats/user_activities.html.erb
index 6fc29aba1..413bf6852 100644
--- a/app/views/wechats/user_activities.html.erb
+++ b/app/views/wechats/user_activities.html.erb
@@ -18,7 +18,7 @@
     window.apiUrl = '/api/v1/';
     window.g_redirect_path = '<%= @path %>';
     window.g_localhost = "<%= Setting.protocol%>://"+"<%= Setting.host_name%>";
-    window.g_appid = <%= @appid %>
+    window.g_appid = "<%= @appid %>";
     <% if @course_id %>
     window.g_courseid = <%= @course_id %>;
     <% elsif @project_id %>