diff --git a/zuul.d/ovn.yaml b/zuul.d/ovn.yaml
index af48781..a575fdc 100644
--- a/zuul.d/ovn.yaml
+++ b/zuul.d/ovn.yaml
@@ -12,6 +12,9 @@
           "/$NEUTRON_CORE_PLUGIN_CONF":
             ovn:
               enable_distributed_floating_ip: true
+      # TODO(fressi): restore name servers list as soon external connectivity
+      # is fixed
+      ipv4_dns_nameservers: []
       devstack_localrc:
         ENABLE_CHASSIS_AS_GW: true
         ENABLE_TLS: true