diff --git a/shell.nix b/shell.nix
index 97ef479..b056933 100644
--- a/shell.nix
+++ b/shell.nix
@@ -1 +1 @@
-let pkgs = import <nixpkgs> {}; in import ./impl.nix pkgs
+let pkgs = import <nixpkgs> { }; in import ./impl.nix { inherit pkgs; }