diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index 1e8f0e1f7e5..8f66cbdef2e 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -242,7 +242,6 @@ class Contrat extends CommonObject
 		'model_pdf' =>array('type'=>'varchar(255)', 'label'=>'Model pdf', 'enabled'=>1, 'visible'=>0, 'position'=>115),
 		'import_key' =>array('type'=>'varchar(14)', 'label'=>'ImportId', 'enabled'=>1, 'visible'=>-2, 'position'=>120),
 		'extraparams' =>array('type'=>'varchar(255)', 'label'=>'Extraparams', 'enabled'=>1, 'visible'=>-1, 'position'=>125),
-		'ref_customer' =>array('type'=>'varchar(50)', 'label'=>'Ref customer', 'enabled'=>1, 'visible'=>-1, 'position'=>130),
 		'fk_user_modif' =>array('type'=>'integer:User:user/class/user.class.php', 'label'=>'UserModif', 'enabled'=>1, 'visible'=>-2, 'notnull'=>-1, 'position'=>135),
 		'last_main_doc' =>array('type'=>'varchar(255)', 'label'=>'Last main doc', 'enabled'=>1, 'visible'=>-1, 'position'=>140),
 		'statut' =>array('type'=>'smallint(6)', 'label'=>'Statut', 'enabled'=>1, 'visible'=>-1, 'position'=>500, 'notnull'=>1, 'arrayofkeyval'=>array(0=>'Draft', 1=>'Validated', 2=>'Closed'))