diff --git a/modules/e11sync/default.nix b/modules/e11sync/default.nix
index 7f7a7c0..7339455 100644
--- a/modules/e11sync/default.nix
+++ b/modules/e11sync/default.nix
@@ -6,6 +6,7 @@ geoip2-tarball: {
 }: let
   overlays = import ../../overlays.nix geoip2-tarball;
   pkgs1 = pkgs.extend (lib.composeManyExtensions overlays);
+  inherit (pkgs1) e11sync-backend e11sync-frontend;
 in {
   options.e11sync = with lib.types; {
     enable = lib.mkEnableOption "Enable e11sync";
@@ -34,7 +35,7 @@ in {
   in
     lib.mkIf cfg.enable {
       environment.systemPackages = [
-        pkgs1.e11sync-backend
+        e11sync-backend
       ];
 
       systemd.services = {
@@ -59,7 +60,7 @@ in {
               StateDirectory = "e11sync-backend";
               WorkingDirectory = "/var/lib/e11sync-backend";
               KillSignal = "SIGQUIT";
-              ExecStart = "${pkgs1.e11sync-backend}/bin/e11sync-backend";
+              ExecStart = "${e11sync-backend}/bin/e11sync-backend";
 
               MemoryHigh = "1535M";
               MemoryMax = "4096M";
@@ -71,7 +72,7 @@ in {
               ProtectControlGroups = true;
             }
             (lib.mkIf cfg.migrateOnStart {
-              ExecStartPre = "${pkgs1.e11sync-backend}/bin/e11sync migrate";
+              ExecStartPre = "${e11sync-backend}/bin/e11sync migrate";
             })
             (lib.mkIf (cfg.secretKeyPath != "unsafe") {
               LoadCredential = "secret_key:${cfg.secretKeyPath}";
@@ -81,6 +82,6 @@ in {
       };
 
       services.caddy.virtualHosts."${cfg.vhost}".extraConfig =
-        builtins.readFile "${pkgs1.e11sync-frontend}";
+        builtins.readFile "${e11sync-frontend}";
     };
 }