diff --git a/app/controller/Wechat.php b/app/controller/Wechat.php
index 43e7108..b4557bb 100644
--- a/app/controller/Wechat.php
+++ b/app/controller/Wechat.php
@@ -70,8 +70,8 @@ class Wechat
         }
         $tokenData = ['userid' => $user->id, 'loginTime' => time(), 'rankStr' => strRand(5)];
         $token     = authcode(json_encode($tokenData), 'ENCODE');
-
-        return redirect($callback.'?token='.$token);
+        $sep       = str_contains($callback, '?') ? '&' : '?';
+        return redirect($callback.$sep.'token='.$token);
     }
 
     /**