diff --git a/htdocs/core/lib/functions.lib.php b/htdocs/core/lib/functions.lib.php
index 2db0ac1fe29..68d80576892 100644
--- a/htdocs/core/lib/functions.lib.php
+++ b/htdocs/core/lib/functions.lib.php
@@ -715,6 +715,8 @@ function dol_bc($var,$moreclass='')
  */
 function dol_format_address($object,$withcountry=0,$sep="\n")
 {
+	global $conf;
+
 	$ret='';
 	$countriesusingstate=array('AU','US','IN','GB','ES','UK','TR');