From 997e16891b3b8d6529972c5b3e5c2d70cb649e09 Mon Sep 17 00:00:00 2001
From: David Molineus <david.molineus@netzmacht.de>
Date: Mon, 17 Dec 2018 15:20:51 +0100
Subject: [PATCH] Add defined check.

---
 src/Bundle/Resources/contao/config/config.php | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/Bundle/Resources/contao/config/config.php b/src/Bundle/Resources/contao/config/config.php
index 9f4431c..3603cf1 100644
--- a/src/Bundle/Resources/contao/config/config.php
+++ b/src/Bundle/Resources/contao/config/config.php
@@ -44,7 +44,7 @@ array_insert(
     ]
 );
 
-if (TL_MODE === 'BE') {
+if (defined('TL_MODE') && TL_MODE === 'BE') {
     $GLOBALS['TL_CSS'][] = 'bundles/netzmachtcontaoleaflet/css/backend_global.css';
 }