diff --git a/dns-zone.tf b/dns-zone-cat.tf
similarity index 98%
rename from dns-zone.tf
rename to dns-zone-cat.tf
index c9b3d85..490b6aa 100644
--- a/dns-zone.tf
+++ b/dns-zone-cat.tf
@@ -1,5 +1,5 @@
 locals {
-  cluster_domain_name        = format("%v.%v", var.cluster_name, var.vpc_domain_name)
+  cluster_domain_name        = format("%v.%v", var.cluster_name, var.domain)
   cluster_domain_description = format("%v EKS Cluster DNS Zone", var.cluster_name)
   # true for gov, false for cat
   aws_dns_infrastructure     = false
@@ -56,7 +56,7 @@ output "cluster_domain_ns" {
 
 # now we need to add the NS records for the new zone to the parent zone
 data "aws_route53_zone" "parent" {
-  name         = var.vpc_domain_name
+  name         = var.domain
   private_zone = true
 }