diff --git a/application/admin/controller/general/Profile.php b/application/admin/controller/general/Profile.php
index 63b765c98eae2a02b95b98152c626af39be77a72..aa5fab9aaa3e6d20f464c15a966cfd2abaef44ac 100644
--- a/application/admin/controller/general/Profile.php
+++ b/application/admin/controller/general/Profile.php
@@ -54,7 +54,6 @@ class Profile extends Backend
                 $params,
                 array_flip(array('email', 'nickname', 'password', 'avatar'))
             ));
-            unset($v);
             if (!Validate::is($params['email'], "email")) {
                 $this->error(__("Please input correct email"));
             }