diff --git a/network.yml b/network.yml
index cdff053..1a353f5 100644
--- a/network.yml
+++ b/network.yml
@@ -10,7 +10,7 @@
       username: service-user
       password: "{{ vault_serviceuser_passwd }}"
     dhcp:
-      authoritative: true
+      authoritative: yes
   roles:
     - re2o-service
     - isc-dhcp-server