diff --git a/user/index.php b/user/index.php
index 80b393272c4..75dc2bebd2d 100644
--- a/user/index.php
+++ b/user/index.php
@@ -95,7 +95,7 @@ $PAGE->set_other_editing_capability('moodle/course:manageactivities');
 // are related to this one.
 $node = $PAGE->settingsnav->find('users', navigation_node::TYPE_CONTAINER);
 if ($node) {
-    $node->forceopen();
+    $node->force_open();
 }
 
 echo $OUTPUT->header();