diff --git a/flake.nix b/flake.nix
index e9ae54ca..f405aea7 100644
--- a/flake.nix
+++ b/flake.nix
@@ -73,6 +73,9 @@
           packages =
             with pkgs;
             [
+              # FORMATTING
+              treefmtEval.config.build.wrapper
+
               # PYTHON
               python313
               uv