diff --git a/flake.nix b/flake.nix
index 10d3c5a..dc14c1a 100644
--- a/flake.nix
+++ b/flake.nix
@@ -179,6 +179,8 @@
           hooks = { nixfmt.enable = true; };
         };
       in {
+        formatter = nixpkgs.legacyPackages."${system}".nixfmt;
+
         devShells.default =
           pkgs.mkShell { inherit (pre-commit-check) shellHook; };
       });