diff --git a/nixos/tests/kubernetes/dns.nix b/nixos/tests/kubernetes/dns.nix
index 46bcb01a526..638942e1540 100644
--- a/nixos/tests/kubernetes/dns.nix
+++ b/nixos/tests/kubernetes/dns.nix
@@ -3,8 +3,6 @@ with import ./base.nix { inherit system; };
 let
   domain = "my.zyx";
 
-  certs = import ./certs.nix { externalDomain = domain; kubelets = [ "machine1" "machine2" ]; };
-
   redisPod = pkgs.writeText "redis-pod.json" (builtins.toJSON {
     kind = "Pod";
     apiVersion = "v1";