diff --git a/neutron/values.yaml b/neutron/values.yaml
index cd2c56fb75..686db9817b 100644
--- a/neutron/values.yaml
+++ b/neutron/values.yaml
@@ -358,6 +358,9 @@ conf:
     append:
     default:
       neutron:
+        base:
+          agent:
+            interface_driver: openvswitch
         dhcp:
           agent:
             dnsmasq_config_file: /etc/neutron/dnsmasq.conf
@@ -368,6 +371,9 @@ conf:
     append:
     default:
       neutron:
+        base:
+          agent:
+            interface_driver: openvswitch
         l3:
           agent:
             agent_mode: legacy