diff --git a/data/web/inc/header.inc.php b/data/web/inc/header.inc.php
index 79078554..533711de 100644
--- a/data/web/inc/header.inc.php
+++ b/data/web/inc/header.inc.php
@@ -99,7 +99,7 @@
           <?php
           foreach ($MAILCOW_APPS as $app):
           ?>
-            <li><a href="<?= $app['link']; ?>"><?= $app['name']; ?></a></li>
+            <li title="<?= htmlspecialchars($app['description']); ?>"><a href="<?= htmlspecialchars($app['link']); ?>"><?= htmlspecialchars($app['name']); ?></a></li>
           <?php
           endforeach;
           ?>