diff --git a/infrastructure/terraform/lambda/_template/variables.tf b/infrastructure/terraform/lambda/_template/variables.tf
index 5876cf3a..a82a0859 100644
--- a/infrastructure/terraform/lambda/_template/variables.tf
+++ b/infrastructure/terraform/lambda/_template/variables.tf
@@ -11,4 +11,9 @@ variable "image_uri" {
 variable "stage" {
   description = "Deployment stage (e.g. dev, prod)"
   type        = string
+}
+
+variable "region" {
+  description = "Deployment stage (e.g. dev, prod)"
+  type        = string
 }
\ No newline at end of file
diff --git a/infrastructure/terraform/lambda/address2UPRN/variables.tf b/infrastructure/terraform/lambda/address2UPRN/variables.tf
index 5876cf3a..a82a0859 100644
--- a/infrastructure/terraform/lambda/address2UPRN/variables.tf
+++ b/infrastructure/terraform/lambda/address2UPRN/variables.tf
@@ -11,4 +11,9 @@ variable "image_uri" {
 variable "stage" {
   description = "Deployment stage (e.g. dev, prod)"
   type        = string
+}
+
+variable "region" {
+  description = "Deployment stage (e.g. dev, prod)"
+  type        = string
 }
\ No newline at end of file