diff --git a/factorio_update.php b/factorio_update.php
index c5d3f28..0bc6cab 100644
--- a/factorio_update.php
+++ b/factorio_update.php
@@ -1,6 +1,6 @@
 <?PHP
 
-
+define("INDEX_DIR", __DIR__);
 
 require __DIR__.'/scripts/class.TerminalMessage.php';
 require __DIR__.'/scripts/func.downloadFile.php';