diff --git a/CRM/Core/Resources/Common.php b/CRM/Core/Resources/Common.php
index 92fff3159af9..3966cf665df5 100644
--- a/CRM/Core/Resources/Common.php
+++ b/CRM/Core/Resources/Common.php
@@ -241,7 +241,7 @@ protected static function coreResourceList($region) {
     if (
       $contactID && !CRM_Core_Config::singleton()->userFrameworkFrontend
       && CRM_Core_Permission::check('access CiviCRM')
-      && !@constant('CIVICRM_DISABLE_DEFAULT_MENU')
+      && !CRM_Utils_Constant::value('CIVICRM_DISABLE_DEFAULT_MENU')
       && !CRM_Core_Config::isUpgradeMode()
     ) {
       $position = $settings->get('menubar_position') ?: 'over-cms-menu';