diff --git a/base.nix b/base.nix
index d53d930..9cf0a3a 100644
--- a/base.nix
+++ b/base.nix
@@ -79,6 +79,8 @@
   users.users.root.openssh.authorizedKeys.keys = [
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIBbGREoK1uVny1s8FK3KZ74Wmaf0VtifhqPyK69C/Gez vili@helium"
     "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIPivDyDYrCRBHRl9zup1Gj5vtyesOW/XKG/68kA8HLaW vili@lithium"
+    "sk-ssh-ed25519@openssh.com AAAAGnNrLXNzaC1lZDI1NTE5QG9wZW5zc2guY29tAAAAIPiupf3xK6eWvno7R2rDYPuDxVvbmzWh5EkR1rquvV9hAAAABHNzaDo= vili@helium"
+    "ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIOOk8akyi6Ob1EOPugxnjdlMQs9rOAbxBbakT8olBFe7 backup_ssh"
   ];
 
   services.fail2ban = {