diff --git a/phpBB/login.php b/phpBB/login.php
index c8d7bfa65b..743c53c14f 100644
--- a/phpBB/login.php
+++ b/phpBB/login.php
@@ -47,7 +47,7 @@ if( isset($HTTP_POST_VARS['login']) || isset($HTTP_GET_VARS['login']) || isset($
 	// since this doesn't exist for ISAPI mode and therefore the 
 	// normal Location redirector is used in preference
 	//
-	$header_location = ( @preg_match("/Microsoft/", getenv("SERVER_SOFTWARE")) ) ? "Refresh: 0; URL=" : "Location: ";
+	$header_location = ( @preg_match("/Microsoft|WebSTAR/", getenv("SERVER_SOFTWARE")) ) ? "Refresh: 0; URL=" : "Location: ";
 
 	if( ( isset($HTTP_POST_VARS['login']) || isset($HTTP_GET_VARS['login']) ) && !$userdata['session_logged_in'] )
 	{