diff --git a/htdocs/eventorganization/class/conferenceorbooth.class.php b/htdocs/eventorganization/class/conferenceorbooth.class.php
index 9b4a9af6bed..abd79bbcaf4 100644
--- a/htdocs/eventorganization/class/conferenceorbooth.class.php
+++ b/htdocs/eventorganization/class/conferenceorbooth.class.php
@@ -50,13 +50,14 @@ class ConferenceOrBooth extends ActionComm
 	public $table_element = 'actioncomm';
 
 	/**
-	 * @var int  Does this object support multicompany module ?
-	 * 0=No test on entity, 1=Test with field entity, 'field@table'=Test with link by field@table
+	 * @var int<0,2>|string 	Does this object support the multicompany module ?
+	 * 0=No test on entity, 1=Test with field entity, 2=Test with link by fk_soc, 'field@table'=Test with link by field@table
 	 */
 	public $ismultientitymanaged = 1;
 
 	/**
-	 * @var int  Does object support extrafields ? 0=No, 1=Yes
+	 * @var int<0,1>  Does this object support extrafields ?
+	 * 0=No, 1=Yes
 	 */
 	public $isextrafieldmanaged = 1;