diff --git a/classes/module/menus_module.php b/classes/module/menus_module.php
index f048917..494909d 100644
--- a/classes/module/menus_module.php
+++ b/classes/module/menus_module.php
@@ -475,7 +475,7 @@ protected function this_course_menu(\renderer_base $output) {
                 }
 
                 if ($navoptions->grades) {
-                    $gradestext = get_string('grade', 'core_grades');
+                    $gradestext = get_string('grades');
                     $gradeslabel = '<span>' . $toolbox->getfontawesomemarkup('table', ['icon']) . $gradestext . '</span>';
                     $thiscoursemenubranch->add(
                         $gradeslabel,