diff --git a/scripts/common-install.sh b/scripts/common-install.sh
index 160ca1f..d4d6c2d 100755
--- a/scripts/common-install.sh
+++ b/scripts/common-install.sh
@@ -221,7 +221,8 @@ nameserver 185.12.64.1
 nameserver 185.12.64.2
 EOF
 
-: ${INSTANCE_ID=$(curl http://169.254.169.254/hetzner/v1/metadata/instance-id)}
+# use custom provider id
+: ${PROVIDER_ID="hcloud://$(curl http://169.254.169.254/hetzner/v1/metadata/instance-id)"}
 
 # kubeadm config print init-defaults --component-configs KubeletConfiguration
 cat <<EOF | tee /etc/kubernetes/kubelet/config.yaml
@@ -260,7 +261,7 @@ kubeReserved:
 protectKernelDefaults: true
 serializeImagePulls: false
 serverTLSBootstrap: true
-providerID: "hcloud://$INSTANCE_ID"
+providerID: "$PROVIDER_ID"
 runtimeRequestTimeout: "15m"
 EOF