diff --git a/kiri-engine/Exception/AuthException.php b/kiri-engine/Exception/AuthException.php
index 565d3ed1..d765c92f 100644
--- a/kiri-engine/Exception/AuthException.php
+++ b/kiri-engine/Exception/AuthException.php
@@ -21,7 +21,7 @@ class AuthException extends \Exception
 	 * @param int $code
 	 * @param Throwable|null $previous
 	 */
-	public function __construct($message = "", $code = 0, Throwable $previous = null)
+	public function __construct(string $message = "", int $code = 0, Throwable $previous = null)
 	{
 		parent::__construct($message, 4001, $previous);
 	}