diff --git a/htdocs/expedition/class/expedition.class.php b/htdocs/expedition/class/expedition.class.php
index 1fc7d1e4889..a096e3ea734 100644
--- a/htdocs/expedition/class/expedition.class.php
+++ b/htdocs/expedition/class/expedition.class.php
@@ -144,8 +144,8 @@ class Expedition extends CommonObject
 	public $date_shipping;
 
 	/**
-	 * @var int		Date of creation
-	 */
+     * @var integer|string date_creation
+     */
 	public $date_creation;