diff --git a/grade/report/grader/lib.php b/grade/report/grader/lib.php
index 230c94dc0cc..ceaead79568 100644
--- a/grade/report/grader/lib.php
+++ b/grade/report/grader/lib.php
@@ -695,7 +695,7 @@ class grade_report_grader extends grade_report {
             // Student name and link
             $user_pic = null;
             if ($showuserimage) {
-                $user_pic = '<div class="userpic">' . print_user_picture($user, $this->courseid, true, 0, true) . '</div>';
+                $user_pic = '<div class="userpic">' . print_user_picture($user, $this->courseid, NULL, 0, true) . '</div>';
             }
 
             $studentshtml .= '<tr class="r'.$this->rowcount++ . $row_classes[$this->rowcount % 2] . '">'