diff --git a/app/controllers/myshixuns_controller.rb b/app/controllers/myshixuns_controller.rb
index e9f412ab..802bb8b9 100644
--- a/app/controllers/myshixuns_controller.rb
+++ b/app/controllers/myshixuns_controller.rb
@@ -357,7 +357,7 @@ class MyshixunsController < ApplicationController
     host = Redmine::Configuration['tomcat_php']
     begin
     uri = "#{shixun_tomcat}/bridge/vnc/getvnc"
-    shixun = myshixun.shixun
+    shixun = @myshixun.shixun
     params = {tpiID: @myshixun.id, :containers => "#{Base64.urlsafe_encode64(container_limit(shixun.mirror_repositories))}"}
     res = uri_exec uri, params
     if res && res['code'].to_i != 0