diff --git a/src/Security/Permission.php b/src/Security/Permission.php
index a249b3dad..1c5d54b91 100644
--- a/src/Security/Permission.php
+++ b/src/Security/Permission.php
@@ -665,7 +665,6 @@ class Permission extends DataObject implements TemplateGlobalProvider, Resettabl
 
         // Localise all permission categories
         $keys[__CLASS__ . '.AdminGroup'] = 'Administrator';
-        $keys[__CLASS__ . '.CMS_ACCESS_CATEGORY'] = 'CMS Access';
         $keys[__CLASS__ . '.CONTENT_CATEGORY'] = 'Content permissions';
         $keys[__CLASS__ . '.PERMISSIONS_CATEGORY'] = 'Roles and access permissions';
         return $keys;