diff --git a/vpn-transit-gateway/README.md b/vpn-transit-gateway/README.md
index 1b59334..19ccaee 100644
--- a/vpn-transit-gateway/README.md
+++ b/vpn-transit-gateway/README.md
@@ -126,5 +126,6 @@ No modules.
 |------|-------------|
 | <a name="output_customer_gateway_arns"></a> [customer\_gateway\_arns](#output\_customer\_gateway\_arns) | AWS Customer Gateway ARNs |
 | <a name="output_customer_gateway_ids"></a> [customer\_gateway\_ids](#output\_customer\_gateway\_ids) | AWS Customer Gateway IDs |
+| <a name="output_debug"></a> [debug](#output\_debug) | n/a |
 | <a name="output_vpn_labels"></a> [vpn\_labels](#output\_vpn\_labels) | VPN Labels for Description field of Endpoint device (Cisco ASR) |
 | <a name="output_vpn_tunnel_endpoints"></a> [vpn\_tunnel\_endpoints](#output\_vpn\_tunnel\_endpoints) | VPN Tunnel Endpoint IP Addresses |
diff --git a/vpn-transit-gateway/vpn-config.tf b/vpn-transit-gateway/vpn-config.tf
index e570177..cc62a27 100644
--- a/vpn-transit-gateway/vpn-config.tf
+++ b/vpn-transit-gateway/vpn-config.tf
@@ -1,6 +1,6 @@
 locals {
-  single_vpn_tunnel_loopback   = one(tolist([for k, v in local.vpn_settings : v.tunnel_loopback]))
-  single_vpn_tunnel_ip_address = one(tolist([for k, v in local.vpn_settings : v.ip_address]))
+  single_vpn_tunnel_loopback   = tolist([for k, v in local.vpn_settings : v.tunnel_loopback])
+  single_vpn_tunnel_ip_address = tolist([for k, v in local.vpn_settings : v.ip_address])
   vpn_tunnel_outputs = { for k, v in local.vpn_settings : k => {
     vpn_name          = k
     site              = v.site
@@ -58,6 +58,12 @@ locals {
   }
 }
 
+output "debug" {
+  value = {
+    single_vpn_tunnel_loopback   = local.single_vpn_tunnel_loopback
+    single_vpn_tunnel_ip_address = local.single_vpn_tunnel_ip_address
+  }
+}
 
 resource "null_resource" "directory_setup" {
   triggers = {