diff --git a/application/admin/controller/Index.php b/application/admin/controller/Index.php
index d01661f3c..bb7de1a7d 100644
--- a/application/admin/controller/Index.php
+++ b/application/admin/controller/Index.php
@@ -8,6 +8,7 @@ use think\Db;
 class Index extends BasicAdmin {
 
     public function index() {
+        $this->assign('ptitle', '后台管理');
         $version = Db::query('select version() as ver');
         $version = array_pop($version);
         $this->assign('mysql_ver', $version['ver']);