diff --git a/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php b/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
index 55b6e623e11d9..50f211bf2f7dd 100644
--- a/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
+++ b/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
@@ -541,6 +541,7 @@ public function save_grade_item($gradeitem, $score, $userid) {
             $grade->feedbackformat = $feedbackformat;
             $grade->feedback = $feedback;
             $grade->rawgrade = $finalgrade;
+            $grade->dategraded = $timemodified;
             $status = grade_update($source, $gradeitem->courseid,
                 $gradeitem->itemtype, $gradeitem->itemmodule,
                 $gradeitem->iteminstance, $gradeitem->itemnumber, $grade);