diff --git a/templates/mail/html.php b/templates/mail/html.php
index a5aae8ddfd0b32167e09b0b801874264f2de7007..e7379653ed5779967858d4876619e60ef89dd037 100644
--- a/templates/mail/html.php
+++ b/templates/mail/html.php
@@ -6,7 +6,7 @@
<?= Assets::stylesheet('studip-base.css') ?>
</head>
<body>
- <div style="background-color: white; margin: auto; max-width: 700px; padding: 4px;">
+ <div style="background-color: white; margin: auto; width: 700px; padding: 4px;">
<?= Assets::img("locale/$lang/LC_PICTURES/mail_header.png") ?>
<p>
<?= formatReady($message, true, true) ?>