diff --git a/flake.nix b/flake.nix
index 55852c4..b043e5e 100644
--- a/flake.nix
+++ b/flake.nix
@@ -31,6 +31,6 @@
     in
     {
       devShells = forAllSystems devShell;
-      formatter.x86_64-darwin = nixpkgs.legacyPackages.x86_64-darwin.nixfmt-rfc-style;
+      formatter = forAllSystems (system: nixpkgs.legacyPackages.${system}.nixfmt-rfc-style);
     };
 }