diff --git a/htdocs/public/ticket/index.php b/htdocs/public/ticket/index.php
index 38bbf7d51bf..c985b92b0f4 100644
--- a/htdocs/public/ticket/index.php
+++ b/htdocs/public/ticket/index.php
@@ -71,7 +71,7 @@ if (!isModEnabled('ticket')) {
 $form = new Form($db);
 $formticket = new FormTicket($db);
 
-if (empty(getDolGlobalString('TICKET_ENABLE_PUBLIC_INTERFACE'))) {
+if (!getDolGlobalString('TICKET_ENABLE_PUBLIC_INTERFACE')) {
 	print $langs->trans('TicketPublicInterfaceForbidden');
 	exit;
 }