diff --git a/mod/forum/classes/privacy/provider.php b/mod/forum/classes/privacy/provider.php
index 06466e67df7..49da231aafd 100644
--- a/mod/forum/classes/privacy/provider.php
+++ b/mod/forum/classes/privacy/provider.php
@@ -37,6 +37,8 @@ use tool_dataprivacy\context_instance;
 
 defined('MOODLE_INTERNAL') || die();
 
+require_once($CFG->dirroot . '/grade/grading/lib.php');
+
 /**
  * Implementation of the privacy subsystem plugin provider for the forum activity module.
  *