diff --git a/htdocs/core/modules/modTicket.class.php b/htdocs/core/modules/modTicket.class.php
index 86841ce5932..ff7eb1ee18f 100644
--- a/htdocs/core/modules/modTicket.class.php
+++ b/htdocs/core/modules/modTicket.class.php
@@ -111,6 +111,7 @@ class modTicket extends DolibarrModules
 			5 => array('TICKET_DELAY_BEFORE_FIRST_RESPONSE', 'chaine', '0', 'Maximum wanted elapsed time before a first answer to a ticket (in hours). Display a warning in tickets list if not respected.', 0),
 			6 => array('TICKET_DELAY_SINCE_LAST_RESPONSE', 'chaine', '0', 'Maximum wanted elapsed time between two answers on the same ticket (in hours). Display a warning in tickets list if not respected.', 0),
 			7 => array('TICKET_NOTIFY_AT_CLOSING', 'chaine', '0', 'Default notify contacts when closing a module', 0),
+			8 => array('TICKET_PRODUCT_CATEGORY', 'chaine', 0, 'The category of product that is being used for ticket accounting', 0)
 		);