diff --git a/nix/os/devices/CFB4ED74/system.nix b/nix/os/devices/CFB4ED74/system.nix
index 5fb7add..257996d 100644
--- a/nix/os/devices/CFB4ED74/system.nix
+++ b/nix/os/devices/CFB4ED74/system.nix
@@ -8,7 +8,8 @@ let
 
 in {
   # TASK: new device
-  networking.hostName = "CFB4ED74"; # Define your hostname.
+  networking.hostName = "contabo1"; # Define your hostname.
+  networking.domain =  "bootstrap.clusters.stefanjunker.de";
 
   networking.firewall.enable = true;
   networking.firewall.allowedTCPPorts = [