diff --git a/cname/README.md b/cname/README.md
index dda008b..e82076f 100644
--- a/cname/README.md
+++ b/cname/README.md
@@ -7,7 +7,7 @@ module "lakefront_cname" {
   source = "git@github.e.it.census.gov:terraform-modules/aws-dns//cname"
 
   name    = format("%v.%v", local.app_shortname, var.vpc_domain_name)
-  values = format("%v.execute-api.%v.amazonaws.com", data.aws_api_gateway_rest_api.lakefront.id, local.region)
+  values  = format("%v.execute-api.%v.amazonaws.com", data.aws_api_gateway_rest_api.lakefront.id, local.region)
 }
 ```
 
diff --git a/cname/main.tf b/cname/main.tf
index 1724fa6..a924c0a 100644
--- a/cname/main.tf
+++ b/cname/main.tf
@@ -8,7 +8,7 @@
 *   source = "git@github.e.it.census.gov:terraform-modules/aws-dns//cname"
 * 
 *   name    = format("%v.%v", local.app_shortname, var.vpc_domain_name)
-*   values = format("%v.execute-api.%v.amazonaws.com", data.aws_api_gateway_rest_api.lakefront.id, local.region)
+*   values  = format("%v.execute-api.%v.amazonaws.com", data.aws_api_gateway_rest_api.lakefront.id, local.region)
 * }
 * ```
 *
diff --git a/cname/output.tf b/cname/output.tf
index 4c9220b..93df745 100644
--- a/cname/output.tf
+++ b/cname/output.tf
@@ -5,5 +5,5 @@ output "name" {
 
 output "heritage_name" {
   description = "DNS Name created for the heritage record, if enabled"
-  value       = one(aws_route53_record.entry_heritage[0].name, null)
+  value       = try(aws_route53_record.entry_heritage[0].name, null)
 }