diff --git a/modules/dgn-ssh.nix b/modules/dgn-ssh.nix
index ede7bae..9bca405 100644
--- a/modules/dgn-ssh.nix
+++ b/modules/dgn-ssh.nix
@@ -35,23 +35,26 @@
 { config, lib, ... }:
 
 let
-  inherit (lib)
-    mkEnableOption
-    mkIf;
+  inherit (lib) mkEnableOption mkIf;
 
   cfg = config.dgn-ssh;
 in
 
 {
   options.dgn-ssh = {
-    enable = mkEnableOption "ssh default configuration." // { default = true; };
+    enable = mkEnableOption "ssh default configuration." // {
+      default = true;
+    };
   };
 
   config = mkIf cfg.enable {
     services.openssh = {
       enable = true;
 
-      settings.PasswordAuthentication = false;
+      settings = {
+        PasswordAuthentication = false;
+        KbdInteractiveAuthentication = false;
+      };
     };
 
     programs.mosh.enable = true;