diff --git a/message/output/popup/mark_notification_read.php b/message/output/popup/mark_notification_read.php
index f2dd6096aa5..04586781b26 100644
--- a/message/output/popup/mark_notification_read.php
+++ b/message/output/popup/mark_notification_read.php
@@ -45,4 +45,4 @@ if ($USER->id != $notification->useridto) {
 }
 
 \core_message\api::mark_notification_as_read($notification);
-redirect($redirecturl);
+redirect(new moodle_url($redirecturl));