diff --git a/htdocs/index.php b/htdocs/index.php
index 08115f8fbf4..9d714525dbc 100644
--- a/htdocs/index.php
+++ b/htdocs/index.php
@@ -24,7 +24,7 @@
  *	\version    $Id$
  */
 
-define('NOCSRFCHECK');	// This is login page. We must be able to go on it from another web site.
+define('NOCSRFCHECK',1);	// This is login page. We must be able to go on it from another web site.
 
 require("./pre.inc.php");
 require_once(DOL_DOCUMENT_ROOT."/boxes.php");