diff --git a/grade/grading/form/rubric/edit.php b/grade/grading/form/rubric/edit.php
index c1849f2a268..15bda1e6f96 100644
--- a/grade/grading/form/rubric/edit.php
+++ b/grade/grading/form/rubric/edit.php
@@ -65,6 +65,10 @@ if ($mform->is_cancelled()) {
     redirect($returnurl, $warning, null, \core\output\notification::NOTIFY_ERROR);
 }
 
+// Try to keep the session alive on this page as it may take some time
+// before significant interaction happens with the server.
+\core\session\manager::keepalive();
+
 echo $OUTPUT->header();
 $mform->display();
-echo $OUTPUT->footer();
\ No newline at end of file
+echo $OUTPUT->footer();