diff --git a/user/messageselect.php b/user/messageselect.php
index 4c37e0b..32ea17d 100644
--- a/user/messageselect.php
+++ b/user/messageselect.php
@@ -57,6 +57,7 @@ if ($format !== FORMAT_MOODLE) {
 if ($deluser !== 0) {
     $url->param('deluser', $deluser);
 }
+$PAGE->set_context(get_system_context());
 $PAGE->set_url($url);
 
 if (!$course = $DB->get_record('course', array('id'=>$id))) {