diff --git a/setup.cfg b/setup.cfg
index fb60bab..95dd185 100644
--- a/setup.cfg
+++ b/setup.cfg
@@ -430,6 +430,8 @@ openstack.volume.v1 =
     volume_qos_show = openstackclient.volume.v1.qos_specs:ShowQos
     volume_qos_unset = openstackclient.volume.v1.qos_specs:UnsetQos
 
+    volume_service_list = openstackclient.volume.v1.service:ListService
+
 openstack.volume.v2 =
     backup_create = openstackclient.volume.v2.backup:CreateBackup
     backup_delete = openstackclient.volume.v2.backup:DeleteBackup
@@ -467,6 +469,8 @@ openstack.volume.v2 =
     volume_qos_show = openstackclient.volume.v2.qos_specs:ShowQos
     volume_qos_unset = openstackclient.volume.v2.qos_specs:UnsetQos
 
+    volume_service_list = openstackclient.volume.v2.service:ListService
+
 [build_sphinx]
 source-dir = doc/source
 build-dir = doc/build