diff --git a/infrastructure/terraform/lambda/address2UPRN/main.tf b/infrastructure/terraform/lambda/address2UPRN/main.tf
index caf06785..12f0a4b3 100644
--- a/infrastructure/terraform/lambda/address2UPRN/main.tf
+++ b/infrastructure/terraform/lambda/address2UPRN/main.tf
@@ -44,3 +44,9 @@ module "address2uprn" {
     },
   )
 }
+
+# Attach S3 read policy to the Lambda execution role
+resource "aws_iam_role_policy_attachment" "address2uprn_read_and_write" {
+  role       = module.lambda.role_name
+  policy_arn = data.terraform_remote_state.shared.outputs.address_2_uprn_s3_read_and_write_arn
+}
\ No newline at end of file
diff --git a/infrastructure/terraform/shared/main.tf b/infrastructure/terraform/shared/main.tf
index 4ec57c3e..9733f5f9 100644
--- a/infrastructure/terraform/shared/main.tf
+++ b/infrastructure/terraform/shared/main.tf
@@ -316,8 +316,8 @@ module "address2uprn_s3_read_and_write" {
   resource_paths     = ["/*"]
 }
 
-output "postcode_splitter_s3_read_arn" {
-  value = module.postcode_splitter_s3_read.policy_arn
+output "address_2_uprn_s3_read_and_write_arn" {
+  value = module.address2uprn_s3_read_and_write.policy_arn
 }
 
 ################################################