diff --git a/report/participation/locallib.php b/report/participation/locallib.php
index 77b48a22bda..8ab59b47a9b 100644
--- a/report/participation/locallib.php
+++ b/report/participation/locallib.php
@@ -98,8 +98,8 @@ function report_participation_get_time_options($minlog) {
 function report_participation_get_action_sql($action, $modname) {
     global $CFG, $DB;
 
-    $crudsql = '';
-    $crudparams = array();
+    $actionsql = '';
+    $actionparams = array();
 
     $viewnames = array();
     $postnames = array();