diff --git a/src/Symfony/Bridge/Monolog/Handler/MailerHandler.php b/src/Symfony/Bridge/Monolog/Handler/MailerHandler.php
index 2b70f52d2ca11..cf59f45ef388f 100644
--- a/src/Symfony/Bridge/Monolog/Handler/MailerHandler.php
+++ b/src/Symfony/Bridge/Monolog/Handler/MailerHandler.php
@@ -30,8 +30,9 @@ class MailerHandler extends AbstractProcessingHandler
 
     /**
      * @param callable|Email $messageTemplate
+     * @param string|int     $level           The minimum logging level at which this handler will be triggered
      */
-    public function __construct(MailerInterface $mailer, $messageTemplate, int $level = Logger::DEBUG, bool $bubble = true)
+    public function __construct(MailerInterface $mailer, $messageTemplate, $level = Logger::DEBUG, bool $bubble = true)
     {
         parent::__construct($level, $bubble);