diff --git a/phpBB/install/upgrade.php b/phpBB/install/upgrade.php
index 5500627ef2..9883738599 100644
--- a/phpBB/install/upgrade.php
+++ b/phpBB/install/upgrade.php
@@ -39,7 +39,7 @@ if ( !defined('INSTALLING') )
 
 	if( defined("PHPBB_INSTALLED") )
 	{
-		redirect("index.$phpEx);
+		redirect("../index.$phpEx);
 	}
 }