diff --git a/gen.jsonnet b/gen.jsonnet
index 35224cefee0a8249585c992887de628f31f7717f..f512000cf66365fcd3a5ffce2a36ccbc9d667680 100644
--- a/gen.jsonnet
+++ b/gen.jsonnet
@@ -29,6 +29,8 @@     {
       name: 'verbose',
       description: 'Log verbosely',
   name: 'cfg-playground',
+    nix: {
+  name: 'cfg-playground',
   description: 'Playground for cfg',
     },
   ],

diff --git a/nix/module.nix b/nix/module.nix
index 54473dbb35a68c4f76a1abc6b051aa784fdacfd3..534b01fb23485f65cefa75e51cfb270faaf22a5f 100644
--- a/nix/module.nix
+++ b/nix/module.nix
@@ -41,6 +41,7 @@           description = "tsnet auth key";
         };
         verbose = mkOption {
           type = types.bool;
+          default = false;
           description = "Log verbosely";
         };
 
@@ -77,11 +78,10 @@             args = [
               "--hostname=${cfg.hostname}"
               "--data-dir=${cfg.data-dir}"
               "--auth-key=${cfg.auth-key}"
-              "--verbose=${cfg.verbose}"
-
+              (lib.optionalString cfg.verbose "--verbose")
             ];
           in
-          "${cfg.package}/bin/cfg-playgroundd ${builtins.concatStringsSep " " args}";
+          "${cfg.package}/bin/cfg-playground ${builtins.concatStringsSep " " args}";
         wantedBy = [ "multi-user.target" ];
         after = [ "network.target" ];
         path = [ cfg.package ];