diff --git a/modules/service_accounts_iam/variables.tf b/modules/service_accounts_iam/variables.tf
index b9192a6d..45b8ac81 100644
--- a/modules/service_accounts_iam/variables.tf
+++ b/modules/service_accounts_iam/variables.tf
@@ -15,8 +15,7 @@
  */
 
 variable "project" {
-  description = "Project to add the IAM policies/bindings"
-  default     = ""
+  description = "ID of target project for the IAM policies/bindings"
   type        = string
 }