diff --git a/group_vars/dch-gw/radvd.yml b/group_vars/dch-gw/radvd.yml
index 631e1c8..4b9ddcb 100644
--- a/group_vars/dch-gw/radvd.yml
+++ b/group_vars/dch-gw/radvd.yml
@@ -1,11 +1,14 @@
 radvd_interfaces:
 - interface: '{{ dch_networks.jazz.router_iface }}'
-  prefix: '::/64'
+  prefixes:
+  - prefix: '::/64'
   rdnss: '{{ dch_networks.jazz.dns_servers }}'
   dnssl: '{{ dch_networks.jazz.dns_search }}'
 
 - interface: '{{ dch_networks.blue.router_iface }}'
-  prefix: '::/64'
+  prefixes:
+  - prefix: '::/64'
 
 - interface: '{{ dch_networks.red.router_iface }}'
-  prefix: '::/64'
+  prefixes:
+  - prefix: '::/64'