diff --git a/sd-image.nix b/sd-image.nix
index ad15494..ff38da2 100644
--- a/sd-image.nix
+++ b/sd-image.nix
@@ -5,6 +5,6 @@
   ];
   # put your own configuration here, for example ssh keys:
   users.users.root.openssh.authorizedKeys.keys = [
-     "ssh-ed25519 AAAAC3NzaC1lZDI1.... username@tld"
+     "ssh-rsa AAAAB3NzaC1yc2EAAAABIwAAAQEAwn26AL26A0Yt4sE+rm5//p8QKuNGI/ezAdNJX9QAjRErjEWnsiUr+w0O78912A2RCakdZYZJo6p1RuLYq6u27mjdLU1hhJs1t/ZFUjevKP33Q8hjptnV3s/G/iPfl0h4kQDStNySgJJ7cGh8Dhj906BrQbns3U2WgVZWwhaYvFiSjZA9UWwvB+n/jN9YeSShfdqGYw8/WlFZiOZrz4poO6/DUOAiztvzrpaQFDtI2f9TdGL1ttvYk04jDCRO1cM1LjgWir+WToalgyAqxfgnlvbv8g16RQo//8qhRdMqQPJKnIRewy/VLN1VbNbO2+z5f6BYbYlfioDXmuzMb86jfQ=="
   ];
 }