diff --git a/htdocs/contrat/class/contrat.class.php b/htdocs/contrat/class/contrat.class.php
index 2bcb802000f..398da806c2d 100644
--- a/htdocs/contrat/class/contrat.class.php
+++ b/htdocs/contrat/class/contrat.class.php
@@ -2519,8 +2519,16 @@ class ContratLigne extends CommonObjectLine
 
 	public $tms;
 
+	/**
+     * @var int ID
+     */
 	public $fk_contrat;
+
+	/**
+     * @var int ID
+     */
 	public $fk_product;
+
 	public $statut;					// 0 inactive, 4 active, 5 closed
 	public $type;						// 0 for product, 1 for service
 
@@ -2563,6 +2571,10 @@ class ContratLigne extends CommonObjectLine
 	public $qty;
 	public $remise_percent;
 	public $remise;
+
+	/**
+     * @var int ID
+     */
 	public $fk_remise_except;
 
 	public $subprice;					// Unit price HT
@@ -2582,13 +2594,30 @@ class ContratLigne extends CommonObjectLine
 	public $total_localtax2;
 	public $total_ttc;
 
+	/**
+     * @var int ID
+     */
 	public $fk_fournprice;
+
 	public $pa_ht;
 
 	public $info_bits;
+
+	/**
+     * @var int ID
+     */
 	public $fk_user_author;
+
+	/**
+     * @var int ID
+     */
 	public $fk_user_ouverture;
+
+	/**
+     * @var int ID
+     */
 	public $fk_user_cloture;
+
 	public $commentaire;
 
 	const STATUS_INITIAL = 0;