diff --git a/modules/ingress/ingress.tf b/modules/ingress/ingress.tf
index d528b9e..7798c18 100644
--- a/modules/ingress/ingress.tf
+++ b/modules/ingress/ingress.tf
@@ -6,7 +6,7 @@ variable "kubernetes_input" {
     connected_namespace    = optional(string, "")
     service_port           = optional(list(number))
     service_type           = optional(string, "ClusterIP")
-    domain_name            = optional(string)
+    domain_name            = optional(list(string))
     legacy_domain          = optional(bool, false)
     exposed                = optional(bool, true)
     enabled                = optional(bool, true)