diff --git a/helm/longhorn.yaml b/helm/longhorn.yaml
index 9c8c7a5..bd3e6f2 100644
--- a/helm/longhorn.yaml
+++ b/helm/longhorn.yaml
@@ -15,7 +15,7 @@ releases:
     chart: longhorn/longhorn
     values:
       - persistence:
-          defaultClass: true
+          defaultClass: {{ requiredEnv "HETZNER_CSI_DISABLED" }}
           defaultFsType: ext4
           defaultClassReplicaCount: 2
       - defaultSettings:
diff --git a/init.tf b/init.tf
index e16d02c..77ee7f7 100644
--- a/init.tf
+++ b/init.tf
@@ -181,6 +181,7 @@ resource "null_resource" "longhorn" {
     when       = create
     command    = <<-EOT
       export KUBECONFIG=$(readlink -f ${path.module}/kubeconfig.yaml)
+      export HETZNER_CSI_DISABLED=${var.disable_hetzner_csi ? "true" : "false"}
       helmfile -f ${path.module}/helm/longhorn.yaml apply
     EOT
     on_failure = continue