diff --git a/nix/module.nix b/nix/module.nix
index 255e15c..6515c54 100644
--- a/nix/module.nix
+++ b/nix/module.nix
@@ -16,21 +16,17 @@ in {
   options = {
     services.tlaternet-webserver = {
       enable = mkEnableOption "tlaternet web server";
-      listen = mkOption {
-        type = submodule {
-          options = {
-            addr = mkOption {
-              type = str;
-              description = "IP address.";
-              default = "127.0.0.1";
-            };
+      listen = {
+        addr = mkOption {
+          type = str;
+          description = "IP address.";
+          default = "127.0.0.1";
+        };
 
-            port = mkOption {
-              type = int;
-              description = "Port number.";
-              default = 8000;
-            };
-          };
+        port = mkOption {
+          type = int;
+          description = "Port number.";
+          default = 8000;
         };
       };
     };