diff --git a/inventory/group_vars/neutron_all.yml b/inventory/group_vars/neutron_all.yml
index f4cec3201a..8cca0d19ad 100644
--- a/inventory/group_vars/neutron_all.yml
+++ b/inventory/group_vars/neutron_all.yml
@@ -13,6 +13,8 @@
 # See the License for the specific language governing permissions and
 # limitations under the License.
 
+neutron_service_region: "{{ service_region }}"
+
 # If there are any Designate hosts in the environment, then enable its usage
 neutron_designate_enabled: "{{ hostvars['localhost']['neutron_designate_enabled'] }}"
 # If there are any Ceilometer hosts in the environment, then enable its usage