diff --git a/assets/packer/build-agents/linux/amazon-linux-2023-arm64.pkr.hcl b/assets/packer/build-agents/linux/amazon-linux-2023-arm64.pkr.hcl
index 578e46de..ba76dcdc 100644
--- a/assets/packer/build-agents/linux/amazon-linux-2023-arm64.pkr.hcl
+++ b/assets/packer/build-agents/linux/amazon-linux-2023-arm64.pkr.hcl
@@ -14,10 +14,12 @@ variable "region" {
 
 variable "vpc_id" {
   type = string
+  default = null
 }
 
 variable "subnet_id" {
   type = string
+  default = null
 }
 
 variable "associate_public_ip_address" {