diff --git a/course/rest.php b/course/rest.php
index c0130975dce..a7b55c9d913 100644
--- a/course/rest.php
+++ b/course/rest.php
@@ -150,6 +150,7 @@ switch($requestmethod) {
                         break;
                     case 'updatetitle':
                         require_capability('moodle/course:manageactivities', $modcontext);
+                        require_once($CFG->libdir . '/gradelib.php');
                         $cm = get_coursemodule_from_id('', $id, 0, false, MUST_EXIST);
                         $module = new stdClass();
                         $module->id = $cm->instance;
@@ -167,6 +168,12 @@ switch($requestmethod) {
                             $module->name = $cm->name;
                         }
 
+                        // Attempt to update the grade item if relevant
+                        $grademodule = $DB->get_record($cm->modname, array('id' => $cm->instance));
+                        $grademodule->cmidnumber = $cm->idnumber;
+                        $grademodule->modname = $cm->modname;
+                        grade_update_mod_grades($grademodule);
+
                         // We need to return strings after they've been through filters for multilang
                         $stringoptions = new stdClass;
                         $stringoptions->context = $coursecontext;