diff --git a/lib/fudo/auth/kerberos/default.nix b/lib/fudo/auth/kerberos/default.nix
index cb7cd1e..6ed6149 100644
--- a/lib/fudo/auth/kerberos/default.nix
+++ b/lib/fudo/auth/kerberos/default.nix
@@ -8,7 +8,7 @@ in {
   config = {
     security.krb5 = {
       enable = true;
-      kerberos = pkgs.heimdal;
+      package = pkgs.heimdal;
       settings = {
         libdefaults = {
           default_realm = realm;