diff --git a/variables.tf b/variables.tf
index d0b1e0e..ce47f9e 100644
--- a/variables.tf
+++ b/variables.tf
@@ -9,7 +9,6 @@ variable "cluster_name" {
 
 variable "cluster_domain" {
   description = "The domain name used to reference ingresses for the cluster"
-  default     = ""
 }
 
 variable "namespace" {