diff --git a/htdocs/core/class/commonobject.class.php b/htdocs/core/class/commonobject.class.php
index 22eef562930..741f5f086a9 100644
--- a/htdocs/core/class/commonobject.class.php
+++ b/htdocs/core/class/commonobject.class.php
@@ -51,6 +51,11 @@ abstract class CommonObject
 	 */
 	public $id;
 
+	/**
+	 * @var int The environment ID when using a multicompany module
+	 */
+	public $entity;
+
 	/**
 	 * @var string 		Error string
 	 * @see             $errors