diff --git a/images/ubuntu/templates/ubuntu-minimal.pkr.hcl b/images/ubuntu/templates/ubuntu-minimal.pkr.hcl
index 9a3c34299d41..634e76d310ed 100644
--- a/images/ubuntu/templates/ubuntu-minimal.pkr.hcl
+++ b/images/ubuntu/templates/ubuntu-minimal.pkr.hcl
@@ -183,7 +183,7 @@ build {
 
   // Install MS package repos, Configure apt
   provisioner "shell" {
-    environment_vars = ["HELPER_SCRIPTS=${var.helper_script_folder}","DEBIAN_FRONTEND=noninteractive"]
+    environment_vars = ["HELPER_SCRIPTS=${local.helper_script_folder}","DEBIAN_FRONTEND=noninteractive"]
     execute_command  = "sudo sh -c '{{ .Vars }} {{ .Path }}'"
     scripts          = [
       "${path.root}/../scripts/build/install-ms-repos.sh",