diff --git a/defaults/main.yml b/defaults/main.yml
index bf988ec..725181c 100644
--- a/defaults/main.yml
+++ b/defaults/main.yml
@@ -20,5 +20,9 @@
 # Forwarders
 unbound_forward_zones: []
 
-# DNS zones
-dns_zones: {}
+# Reverse zones, used to allow queries against RFC1918 domains
+unbound_reverse_zones: []
+
+# DNS forward/reverse zones, see also NSD role
+dns_forward_zones: {}
+dns_reverse_zones: {}