diff --git a/htdocs/bom/class/bom.class.php b/htdocs/bom/class/bom.class.php
index ddabce9b2b9..32cedb73826 100644
--- a/htdocs/bom/class/bom.class.php
+++ b/htdocs/bom/class/bom.class.php
@@ -114,9 +114,8 @@ class BOM extends CommonObject
 	public $note_private;
 
 	/**
-	 * Creation date
-	 * @var int
-	 */
+     * @var integer|string date_creation
+     */
 	public $date_creation;