diff --git a/mod/assign/locallib.php b/mod/assign/locallib.php
index 6163841679b..cdfb34f91ff 100644
--- a/mod/assign/locallib.php
+++ b/mod/assign/locallib.php
@@ -2874,7 +2874,7 @@ class assign {
                 }
 
                 $gradeddate = $gradebookgrade->dategraded;
-                $grader = $DB->get_record('user', array('id'=>$gradebookgrade->usermodified));
+                $grader = $DB->get_record('user', array('id'=>$grade->grader));
 
                 $feedbackstatus = new assign_feedback_status($gradefordisplay,
                                                       $gradeddate,