diff --git a/release.nix b/release.nix
index ed863c2..6f55a78 100644
--- a/release.nix
+++ b/release.nix
@@ -1,5 +1,3 @@
-{ ... }:
-let
-    pkgs = import <nixpkgs> { overlays = [ (import ./overlay.nix) ];
-in
+{ pkgs ? import <nixpkgs> { overlays = [ (import ./overlay.nix) ]; } }:
     qemu = pkgs.patched-qemu;
+}