diff --git a/inc/bootstrap.php b/inc/bootstrap.php
index 165d2a1d..be7b93bf 100644
--- a/inc/bootstrap.php
+++ b/inc/bootstrap.php
@@ -1,3 +1,3 @@
 <?php
-define('TINYBOARD', 'xD');
+defined('TINYBOARD') or define('TINYBOARD', 'xD');
 require_once('vendor/autoload.php');