diff --git a/report/stats/locallib.php b/report/stats/locallib.php
index 0a0b6f1e41402..1a671c2072375 100644
--- a/report/stats/locallib.php
+++ b/report/stats/locallib.php
@@ -111,7 +111,8 @@ function report_stats_report($course, $report, $mode, $user, $roleid, $time) {
 
         list($sort, $moreparams) = users_order_by_sql('u');
         $moreparams['courseid'] = $course->id;
-        $sql = "SELECT DISTINCT u.id, u.firstname, u.lastname, u.idnumber
+        $fields = user_picture::fields('u', array('idnumber'));
+        $sql = "SELECT DISTINCT $fields
                   FROM {stats_user_{$param->table}} s
                   JOIN {user} u ON u.id = s.userid
                  WHERE courseid = :courseid";
@@ -128,9 +129,8 @@ function report_stats_report($course, $report, $mode, $user, $roleid, $time) {
         if (!$us = $DB->get_records_sql($sql, array_merge($param->params, $moreparams))) {
             print_error('nousers');
         }
-
         foreach ($us as $u) {
-            $users[$u->userid] = fullname($u, true);
+            $users[$u->id] = fullname($u, true);
         }
 
         $table->align = array('left','left','left','left','left','left','left','left');