From 9e52f734cb74f21776021a77c77d56744f0fd717 Mon Sep 17 00:00:00 2001
From: Manuel Raynaud <raynaud.manu@gmail.com>
Date: Fri, 9 May 2014 11:15:07 +0200
Subject: [PATCH] test variable before using it

---
 web/install/header.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/web/install/header.php b/web/install/header.php
index 41c3d495e..b5db3ccd3 100644
--- a/web/install/header.php
+++ b/web/install/header.php
@@ -30,7 +30,7 @@ $lang = isset($_REQUEST['lang']) ? $_REQUEST['lang'] : null;
 if($lang){
     $_SESSION['install']['lang'] = $_REQUEST['lang'];
 }
-elseif(!$lang && !$_SESSION['install']['lang']){
+elseif(!$lang && !isset($_SESSION['install']['lang'])){
     $_SESSION['install']['lang'] = "en_US";
 }