diff --git a/db_scripts/diff/15005.up b/db_scripts/diff/15005.up
index b01d75bc..5b3180cc 100644
--- a/db_scripts/diff/15005.up
+++ b/db_scripts/diff/15005.up
@@ -17,7 +17,7 @@ USE provisioning;
 CREATE TABLE `voip_pbx_groups` (
   `id` int(11) unsigned NOT NULL AUTO_INCREMENT,
   `contract_id` int(11) unsigned NOT NULL,
-  `number_id` int(11) unsigned NOT NULL,
+  `number_id` int(11) unsigned DEFAULT NULL,
   `hunt_policy` enum('serial','parallel') NOT NULL DEFAULT 'serial',
   `hunt_policy_timeout` int(4) unsigned NOT NULL,
   PRIMARY KEY (`id`),