diff --git a/app/helpers/application_helper.rb b/app/helpers/application_helper.rb
index 3aa7d8a4a..46fdb02f3 100644
--- a/app/helpers/application_helper.rb
+++ b/app/helpers/application_helper.rb
@@ -1080,7 +1080,7 @@ module ApplicationHelper
       elsif @user
         title << @user.try(:realname)
       else
-        title << User.current.try(:realname)
+        title << (User.current.id == 2 ? "未登录" : User.current.try(:realname))
       end
       if first_page.nil? || first_page.web_title.nil?
         title << Setting.app_title unless Setting.app_title == title.last