diff --git a/contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/main.tf b/contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/main.tf
index 7a514570a..e6bce7d06 100644
--- a/contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/main.tf
+++ b/contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/main.tf
@@ -146,6 +146,7 @@ data "template_file" "machine-configs" {
 
   vars = {
     ssh_keys = jsonencode(var.ssh_public_keys)
+    user_flatcar = jsonencode(var.user_flatcar)
     name     = each.key
   }
 }
diff --git a/contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/variables.tf b/contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/variables.tf
index a9cac2962..4f2f8f51d 100644
--- a/contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/variables.tf
+++ b/contrib/terraform/hetzner/modules/kubernetes-cluster-flatcar/variables.tf
@@ -27,7 +27,7 @@ variable "ssh_public_keys" {
   type = list(string)
 }
 
-variable "ssh_public_keys" {
+variable "ssh_private_key_path" {
   type    = string
   default = "~/.ssh/id_rsa"
 }