diff --git a/mail/layouts/html.php b/mail/layouts/html.php
index a9689cc..b7235d1 100644
--- a/mail/layouts/html.php
+++ b/mail/layouts/html.php
@@ -3,14 +3,15 @@ use yii\helpers\Html;
 
 /**
  * @var \yii\web\View $this
- * @var \yii\mail\BaseMessage $content
+ * @var \yii\mail\MessageInterface $message
+ * @var string $content
  */
 ?>
 <?php $this->beginPage() ?>
 <!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
 <html xmlns="http://www.w3.org/1999/xhtml">
 <head>
-    <meta http-equiv="Content-Type" content="text/html; charset=<?= Yii::$app->charset ?>" />
+    <meta http-equiv="Content-Type" content="text/html; charset=<?= $message->getCharset() ?>" />
     <title><?= Html::encode($this->title) ?></title>
     <?php $this->head() ?>
 </head>
