diff --git a/module/user/zen.php b/module/user/zen.php
index 387318af8c..c057aeecea 100644
--- a/module/user/zen.php
+++ b/module/user/zen.php
@@ -155,7 +155,8 @@ class userZen extends user
 
         /* 验证账号和密码。*/
         /* Verify account and password. */
-        $user = $this->user->identify($account, $password, (int)$this->post->passwordStrength);
+        $passwordStrength = $viewType == 'json' ? 1 : (int)$this->post->passwordStrength;
+        $user             = $this->user->identify($account, $password, $passwordStrength);
 
         /* 登录失败返回错误信息。*/
         /* Return error message if login failed. */