diff --git a/default.nix b/default.nix
index b511e0d..9b63703 100644
--- a/default.nix
+++ b/default.nix
@@ -1,5 +1,8 @@
-{ config, pkgs, lib, system ? builtins.currentSystem, ... }:
+{ system ? builtins.currentSystem }:
 
+let
+  pkgs = import <nixpkgs> { inherit system; };
+in
 {
   apache-hop = pkgs.callPackage ./pkgs/apache-hop { };
-}
\ No newline at end of file
+}
diff --git a/pkgs/apache-hop/default.nix b/pkgs/apache-hop/default.nix
index 5c4eacf..19b3a0b 100644
--- a/pkgs/apache-hop/default.nix
+++ b/pkgs/apache-hop/default.nix
@@ -1,4 +1,4 @@
-{ pkgs ? import <nixpkgs> { }, ... }:
+{ pkgs ? import <nixpkgs> { } }:
 
 pkgs.stdenv.mkDerivation rec {
   pname = "apache-hop";