diff --git a/templates/cassiopeia/index.php b/templates/cassiopeia/index.php
index 59376c9c7ee87..8c89032ba609c 100644
--- a/templates/cassiopeia/index.php
+++ b/templates/cassiopeia/index.php
@@ -26,8 +26,7 @@
 $itemid   = $app->input->getCmd('Itemid', '');
 $sitename = htmlspecialchars($app->get('sitename'), ENT_QUOTES, 'UTF-8');
 $menu     = $app->getMenu()->getActive();
-$pageclass = $menu->getParams()->get('pageclass_sfx');
-
+$pageclass = $menu !== null ? $menu->getParams()->get('pageclass_sfx', '') : '';
 // Enable assets
 $wa->usePreset('template.cassiopeia.' . ($this->direction === 'rtl' ? 'rtl' : 'ltr'))
 	->useStyle('template.active.language')