diff --git a/apps/basic/views/layouts/main.php b/apps/basic/views/layouts/main.php
index b9dcfb97a5..d5bba3a048 100644
--- a/apps/basic/views/layouts/main.php
+++ b/apps/basic/views/layouts/main.php
@@ -14,7 +14,7 @@ AppAsset::register($this);
 <!DOCTYPE html>
 <html lang="<?= Yii::$app->language ?>">
 <head>
-    <meta charset="<?= Yii::$app->charset ?>"/>
+    <meta charset="<?= Yii::$app->charset ?>">
     <meta name="viewport" content="width=device-width, initial-scale=1">
     <?= Html::csrfMetaTags() ?>
     <title><?= Html::encode($this->title) ?></title>
