diff --git a/examples/rotuer.nix b/examples/rotuer.nix
index 9351931..ad43d58 100644
--- a/examples/rotuer.nix
+++ b/examples/rotuer.nix
@@ -112,7 +112,7 @@ in rec {
       domain = "fake.liminix.org";
     };
 
-  services.wan = svc.pppoe {
+  services.wan = svc.pppoe.build {
     interface = config.hardware.networkInterfaces.wan;
     ppp-options = [
       "debug" "+ipv6" "noauth"
diff --git a/modules/ppp/default.nix b/modules/ppp/default.nix
index baa7188..a0e716a 100644
--- a/modules/ppp/default.nix
+++ b/modules/ppp/default.nix
@@ -11,14 +11,24 @@
 { lib, pkgs, config, ...}:
 let
   inherit (lib) mkOption types;
+  inherit (pkgs) liminix;
 in {
   options = {
     system.service.pppoe = mkOption {
-      type = types.functionTo types.package;
+      type = liminix.lib.types.serviceDefn;
     };
   };
   config = {
-    system.service.pppoe = pkgs.callPackage ./pppoe.nix {};
+    system.service.pppoe = pkgs.liminix.callService ./pppoe.nix {
+      interface = mkOption {
+        type = liminix.lib.types.service;
+        description = "ethernet interface to run PPPoE over";
+      };
+      ppp-options = mkOption {
+        type = types.listOf types.str;
+        description = "options supplied on ppp command line";
+      };
+    };
     kernel = {
       config = {
         PPP = "y";
diff --git a/modules/ppp/pppoe.nix b/modules/ppp/pppoe.nix
index c7ceead..9aae986 100644
--- a/modules/ppp/pppoe.nix
+++ b/modules/ppp/pppoe.nix
@@ -6,25 +6,9 @@
 , writeAshScript
 , serviceFns
 } :
+{ interface, ppp-options }:
 let
   inherit (liminix.services) longrun;
-  inherit (liminix.lib) typeChecked;
-  inherit (lib) mkOption types;
-
-  t = {
-    interface = mkOption {
-      type = liminix.lib.types.service;
-      description = "ethernet interface to run PPPoE over";
-    };
-    ppp-options = mkOption {
-      type = types.listOf types.str;
-      description = "options supplied on ppp command line";
-    };
-  };
-in
-params:
-let
-  inherit (typeChecked "pppoe.nix" t params) interface ppp-options;
   name = "${interface.device}.pppoe";
   ip-up = writeAshScript "ip-up" {} ''
     . ${serviceFns} 
@@ -55,7 +39,6 @@ let
     "usepeerdns"
     "logfd" "2"
   ];
-
 in
 longrun {
   inherit name;