diff --git a/nix/overlay.nix b/nix/overlay.nix
index c20a24b761769..65ede9bf6aee0 100644
--- a/nix/overlay.nix
+++ b/nix/overlay.nix
@@ -53,13 +53,11 @@ let
         # Use base package set from pyproject.nix builders
         (pkgs.callPackage pyproject-nix.build.packages {
           inherit python;
-          stdenv = pkgs.stdenv.override (
-            lib.optionalAttrs pkgs.stdenv.targetPlatform.isDarwin {
-              targetPlatform = pkgs.stdenv.targetPlatform // {
-                darwinSdkVersion = "12.0";
-              };
-            }
-          );
+          stdenv = pkgs.stdenv.override {
+            targetPlatform = pkgs.stdenv.targetPlatform // {
+              darwinSdkVersion = "12.0";
+            };
+          };
         }).overrideScope
           (lib.composeManyExtensions ([
             pyproject-build-systems.overlays.default