diff --git a/vpn/README.md b/vpn/README.md
index 6af7cc2..8a843b2 100644
--- a/vpn/README.md
+++ b/vpn/README.md
@@ -76,6 +76,7 @@ No modules.
 | <a name="input_tags"></a> [tags](#input\_tags) | AWS Tags to apply to appropriate resources (S3, KMS).  Do not include safeguard tags here, use the data\_safeguard field for such things. | `map(string)` | `{}` | no |
 | <a name="input_vpc_environment"></a> [vpc\_environment](#input\_vpc\_environment) | VPC environment purpose (infrastructure, common, shared, dev, stage, ite, prod) | `string` | `null` | no |
 | <a name="input_vpc_full_name"></a> [vpc\_full\_name](#input\_vpc\_full\_name) | VPC full name component (vpc{index}-{vpc\_name}) | `string` | `null` | no |
+| <a name="input_vpc_id"></a> [vpc\_id](#input\_vpc\_id) | VPC ID | `string` | n/a | yes |
 | <a name="input_vpc_index"></a> [vpc\_index](#input\_vpc\_index) | VPC index number (integer starting at 1) | `number` | `null` | no |
 | <a name="input_vpc_name"></a> [vpc\_name](#input\_vpc\_name) | VPC name component used through the VPC descrbing its purpose (ex: dice-dev) | `string` | `null` | no |
 | <a name="input_vpc_short_name"></a> [vpc\_short\_name](#input\_vpc\_short\_name) | VPC short name component (vpc{index}) | `string` | `null` | no |
diff --git a/vpn/variables.tf b/vpn/variables.tf
index f5f9ade..e256a5a 100644
--- a/vpn/variables.tf
+++ b/vpn/variables.tf
@@ -28,3 +28,9 @@ variable "route_table_ids" {
   type        = list(string)
   default     = []
 }
+
+variable "vpc_id" {
+  description = "VPC ID"
+  type        = string
+}
+