diff --git a/message/output/popup/mark_notification_read.php b/message/output/popup/mark_notification_read.php
index 5f334a77b3d..93ecb6d269e 100644
--- a/message/output/popup/mark_notification_read.php
+++ b/message/output/popup/mark_notification_read.php
@@ -31,7 +31,7 @@ if (isguestuser()) {
 }
 
 $notificationid = required_param('notificationid', PARAM_INT);
-$redirecturl = optional_param('redirecturl', $CFG->wwwroot, PARAM_LOCALURL);
+$redirecturl = optional_param('redirecturl', $CFG->wwwroot, PARAM_URL);
 
 $notification = $DB->get_record('message', array('id' => $notificationid, 'notification' => 1));