diff --git a/shell.nix b/shell.nix
index 419f87e78520a93ecef2c939d7eddd2975818327..5963efcdb61e1097b0d0fe0c748ecf2f1ce898db 100644
--- a/shell.nix
+++ b/shell.nix
@@ -4,9 +4,9 @@ let
     sha256 = "0cdq342wrkvkyccygpp1gvwp7hhqg68hljjwld4vjixm901ayy14";
   }) {};
 in
-{ pkgs ? pinnedPkgs }:
-pkgs.mkShell {
+{ ... }:
+pinnedPkgs.mkShell {
   buildInputs = [
-    pkgs.stack
+    pinnedPkgs.stack
   ];
 }