diff --git a/modules/cloud-function/main.tf b/modules/cloud-function/main.tf
index 708622343..b5a861b2a 100644
--- a/modules/cloud-function/main.tf
+++ b/modules/cloud-function/main.tf
@@ -267,7 +267,7 @@ resource "google_storage_bucket_object" "bundle" {
 data "archive_file" "bundle" {
   type             = "zip"
   source_dir       = var.bundle_config.source_dir
-  output_path      = var.bundle_config.output_path != null ? var.bundle_config.output_path : "/tmp/bundle-${var.project_id}-${var.name}.zip"
+  output_path      = coalesce(var.bundle_config.output_path, "/tmp/bundle-${var.project_id}-${var.name}.zip")
   output_file_mode = "0644"
   excludes         = var.bundle_config.excludes
 }