diff --git a/hosts/carbon/ppp.nix b/hosts/carbon/ppp.nix
index 784c1de..200b161 100644
--- a/hosts/carbon/ppp.nix
+++ b/hosts/carbon/ppp.nix
@@ -1,4 +1,4 @@
-{ config, pkgs, utils, ... }:
+{ config, pkgs, lib, ... }:
 
 {
 
@@ -44,12 +44,15 @@
       cat ${config.sops.secrets.pppd-dtagdsl-secrets.path} > /etc/ppp/chap-secrets
     '';
 
-    preStartFile = utils.systemdUtils.lib.makeJobScript "pppd-dtagdsl-pre-start" preStart;
+    preStartFile = pkgs.writeShellApplication {
+      name = "pppd-dtagdsl-pre-start";
+      text = preStart;
+    };
   in {
     EnvironmentFile = config.sops.secrets.pppd-dtagdsl-username.path;
     ExecStartPre = [
       # "+" marks script to be executed without priviledge restrictions
-      "+${preStartFile}"
+      "+${lib.getExe preStartFile}"
     ];
   };