diff --git a/dns_zones.tf b/dns_zones.tf
index e6f6c6c..2b974ae 100644
--- a/dns_zones.tf
+++ b/dns_zones.tf
@@ -2,6 +2,7 @@ locals {
   vpc_domain_name            = var.vpc_domain_name
   cluster_domain_name        = format("%v.%v", var.cluster_name, local.vpc_domain_name)
   cluster_domain_description = format("%v EKS Cluster DNS Zone", var.cluster_name)
+  region = var.region
 }
 
 #---
@@ -51,8 +52,8 @@ resource "aws_route53_zone" "cluster_domain" {
   lifecycle {
     ignore_changes = [vpc]
     precondition {
-      condition     = (var.shared_vpc_label == null || var.shared_vpc_label == "") || (! (var.shared_vpc_label == null || var.shared_vpc_label == "") && ! (var.domain == null || var.domain == ""))
-      error_message = "var.domain must be provided when shared VPCs are in use."
+      condition     = (var.shared_vpc_label == null || var.shared_vpc_label == "") || (! (var.shared_vpc_label == null || var.shared_vpc_label == "") && ! (var.vpc_domain_name == null || var.vpc_domain_name == ""))
+      error_message = "var.vpc_domain_name must be provided when shared VPCs are in use."
     }
   }