diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index 57e3852ac6a..a5c48e902fd 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -227,12 +227,10 @@ class Contrat extends CommonObject
 	 *  Close all lines of a contract
 	 *
 	 *  @param	User		$user      Object User making action
-	 *  @param  Translate	$langs     Object Lang
-	 *  @param  Conf		$conf      Object Conf
 	 *	@return	void
 	 */
-	function cloture($user,$langs='',$conf='')
-	{
+	function cloture($user)
+	{	
 		$this->db->begin();
 
 		// Load lines
@@ -258,7 +256,7 @@ class Contrat extends CommonObject
 
 		if ($this->statut == 0)
 		{
-			$result=$this->validate($user,$langs,$conf);
+			$result=$this->validate($user);
 			if ($result < 0) $ok=false;
 		}
 
@@ -277,12 +275,12 @@ class Contrat extends CommonObject
 	 *  Validate a contract
 	 *
 	 *  @param	User		$user      	Objet User
-	 *  @param  Translate	$langs     	Environnement langue de l'utilisateur
-	 *  @param  Conf		$conf      	Environnement de configuration lors de l'operation
 	 * 	@return	int						<0 if KO, >0 if OK
 	 */
-	function validate($user,$langs,$conf)
+	function validate($user)
 	{
+		global $langs, $conf;
+		
 		$error=0;
 
 		$sql = "UPDATE ".MAIN_DB_PREFIX."contrat SET statut = 1";
@@ -697,12 +695,12 @@ class Contrat extends CommonObject
 	 *  Supprime l'objet de la base
 	 *
 	 *  @param	User		$user       Utilisateur qui supprime
-	 *  @param  Translate	$langs      Environnement langue de l'utilisateur
-	 *  @param  Conf		$conf       Environnement de configuration lors de l'operation
 	 *  @return int         			< 0 si erreur, > 0 si ok
 	 */
-	function delete($user,$langs='',$conf='')
+	function delete($user)
 	{
+		global $conf, $langs;
+		
 		$error=0;
 
 		$this->db->begin();
diff --git a/htdocs/contrat/fiche.php b/htdocs/contrat/fiche.php
index 897cf0901df..89f0eea8780 100644
--- a/htdocs/contrat/fiche.php
+++ b/htdocs/contrat/fiche.php
@@ -415,21 +415,21 @@ else if ($action == 'confirm_deleteline' && $confirm == 'yes' && $user->rights->
 else if ($action == 'confirm_valid' && $confirm == 'yes' && $user->rights->contrat->creer)
 {
     $object->fetch($id);
-    $result = $object->validate($user,$langs,$conf);
+    $result = $object->validate($user);
 }
 
 // Close all lines
 else if ($action == 'confirm_close' && $confirm == 'yes' && $user->rights->contrat->creer)
 {
     $object->fetch($id);
-    $result = $object->cloture($user,$langs,$conf);
+    $result = $object->cloture($user);
 }
 
 else if ($action == 'confirm_delete' && $confirm == 'yes' && $user->rights->contrat->supprimer)
 {
 	$object->fetch($id);
 	$object->fetch_thirdparty();
-	$result=$object->delete($user,$langs,$conf);
+	$result=$object->delete($user);
 	if ($result >= 0)
 	{
 		Header("Location: index.php");
diff --git a/test/phpunit/ContratTest.php b/test/phpunit/ContratTest.php
index 824f463034f..2a827af2665 100644
--- a/test/phpunit/ContratTest.php
+++ b/test/phpunit/ContratTest.php
@@ -234,7 +234,7 @@ class ContratTest extends PHPUnit_Framework_TestCase
 
 		$localobject=new Contrat($this->savdb);
     	$result=$localobject->fetch($id);
-		$result=$localobject->delete($id);
+		$result=$localobject->delete($user);
 
 		print __METHOD__." id=".$id." result=".$result."\n";
     	$this->assertLessThan($result, 0);