diff --git a/modules/cloud-function/variables.tf b/modules/cloud-function/variables.tf
index 8f3eeb36..7e6404d0 100644
--- a/modules/cloud-function/variables.tf
+++ b/modules/cloud-function/variables.tf
@@ -28,6 +28,11 @@ variable "bucket_name" {
   type        = string
 }
 
+variable "build_worker_pool" {
+  description = "Build worker pool, in projects/<PROJECT-ID>/locations/<REGION>/workerPools/<POOL_NAME> format"
+  type        = string
+}
+
 variable "bundle_config" {
   description = "Cloud function source folder and generated zip bundle paths. Output path defaults to '/tmp/bundle.zip' if null."
   type = object({
@@ -94,10 +99,6 @@ variable "prefix" {
   description = "Optional prefix used for resource names."
   type        = string
   default     = null
-  validation {
-    condition     = var.prefix != ""
-    error_message = "Prefix cannot be empty, please use null instead."
-  }
 }
 
 variable "project_id" {
@@ -170,3 +171,4 @@ variable "v2" {
   default     = false
 }
 
+