diff --git a/lib/cinder b/lib/cinder
index 0d157dd..19240ee 100644
--- a/lib/cinder
+++ b/lib/cinder
@@ -242,6 +242,8 @@
     # supported.
     iniset $CINDER_CONF DEFAULT enable_v1_api true
 
+    iniset $CINDER_CONF DEFAULT os_region_name "$REGION_NAME"
+
     if is_service_enabled c-vol && [[ -n "$CINDER_ENABLED_BACKENDS" ]]; then
         local enabled_backends=""
         local default_name=""
diff --git a/lib/nova b/lib/nova
index e9e78c7..199daee 100644
--- a/lib/nova
+++ b/lib/nova
@@ -544,6 +544,8 @@
     iniset $NOVA_CONF DEFAULT ec2_workers "$API_WORKERS"
     iniset $NOVA_CONF DEFAULT metadata_workers "$API_WORKERS"
 
+    iniset $NOVA_CONF cinder os_region_name "$REGION_NAME"
+
     if [[ "$NOVA_BACKEND" == "LVM" ]]; then
         iniset $NOVA_CONF libvirt images_type "lvm"
         iniset $NOVA_CONF libvirt images_volume_group $DEFAULT_VOLUME_GROUP_NAME