diff --git a/mod/forum/templates/grades/grade_button.mustache b/mod/forum/templates/grades/grade_button.mustache
index 31c68ffd241..e84e9a0fb82 100644
--- a/mod/forum/templates/grades/grade_button.mustache
+++ b/mod/forum/templates/grades/grade_button.mustache
@@ -43,7 +43,6 @@
     data-grading-component="{{gradingcomponent}}"
     data-grading-component-subtype="{{gradingcomponentsubtype}}"
     data-gradable-itemtype="forum"
-    {{#firstgradeduserid}}data-initialuserid="{{firstgradeduserid}}" {{/firstgradeduserid}}
     {{#sendstudentnotifications}}data-send-student-notifications="1" {{/sendstudentnotifications}}
 >
     {{#str}}gradeusers, forum{{/str}}