diff --git a/htdocs/compta/facture/class/facture.class.php b/htdocs/compta/facture/class/facture.class.php
index 1e58f11aeb0..7404f2595e2 100644
--- a/htdocs/compta/facture/class/facture.class.php
+++ b/htdocs/compta/facture/class/facture.class.php
@@ -129,22 +129,32 @@ class Facture extends CommonInvoice
 	/**
 	 * @var int	Date expected for delivery
 	 * @deprecated
+	 * @see delivery_date
 	 */
-	public $date_livraison; // deprecated; Use delivery_date instead.
+	public $date_livraison;
 
+	/**
+	 * @var int	Date expected for delivery
+	 */
 	public $delivery_date; // Date expected of shipment (date starting shipment, not the reception that occurs some days after)
 
+	/**
+	 * @var string customer ref
+	 * @deprecated
+	 * @see ref_customer
+	 */
+	public $ref_client;
+
 	/**
 	 * @var string customer ref
 	 */
-	public $ref_client;		// deprecated; use ref_customer instead
 	public $ref_customer;
 
 	/**
 	 * @var int Ref Int
 	 * @deprecated
 	 */
-	public $ref_int; // deprecated
+	public $ref_int;
 
 	//Check constants for types
 	public $type = self::TYPE_STANDARD;