diff --git a/vpc/main.tf b/vpc/main.tf
index fb7f3a4..61c8bd3 100644
--- a/vpc/main.tf
+++ b/vpc/main.tf
@@ -39,7 +39,7 @@ locals {
 
   enable_dns_support   = var.enable_aws_dns ? true : var.enable_dns_support
   enable_dns_hostnames = var.enable_aws_dns ? true : var.enable_dns_hostnames
-  vpc_dns_servers      = var.enable_aws_dns ? "AmazonDNS" : var.vpc_dns_servers
+  vpc_dns_servers      = var.enable_aws_dns ? ["AmazonProvidedDNS"] : var.vpc_dns_servers
 
 }