diff --git a/htdocs/compta/paiement/class/paiement.class.php b/htdocs/compta/paiement/class/paiement.class.php
index 60d669fcacf..7ec698f06bc 100644
--- a/htdocs/compta/paiement/class/paiement.class.php
+++ b/htdocs/compta/paiement/class/paiement.class.php
@@ -78,11 +78,11 @@ class Paiement extends CommonObject
 	/**
 	 *    Load payment from database
 	 *
-	 *    @param	int		$id     Id of payment to get
-	 *    @param	int		$ref    Ref of payment to get (same as $id)
-	 *    @return   int     		<0 if KO, 0 if not found, >0 if OK
+	 *    @param	int		$id			Id of payment to get
+	 *    @param	int		$fk_bank	Id of bank line associated to payment
+	 *    @return   int		<0 if KO, 0 if not found, >0 if OK
 	 */
-	function fetch($id, $ref='')
+	function fetch($id, $fk_bank='')
 	{
 		$sql = 'SELECT p.rowid, p.datep as dp, p.amount, p.statut, p.fk_bank,';
 		$sql.= ' c.code as type_code, c.libelle as type_libelle,';
@@ -91,8 +91,8 @@ class Paiement extends CommonObject
 		$sql.= ' FROM '.MAIN_DB_PREFIX.'c_paiement as c, '.MAIN_DB_PREFIX.'paiement as p';
 		$sql.= ' LEFT JOIN '.MAIN_DB_PREFIX.'bank as b ON p.fk_bank = b.rowid ';
 		$sql.= ' WHERE p.fk_paiement = c.id';
-		if ($ref)
-			$sql.= ' AND p.rowid = '.$ref;
+		if ($fk_bank)
+			$sql.= ' AND p.fk_bank = '.$fk_bank;
 		else
 			$sql.= ' AND p.rowid = '.$id;