diff --git a/flake.nix b/flake.nix
index 94633f030..3f73da9b3 100644
--- a/flake.nix
+++ b/flake.nix
@@ -248,6 +248,6 @@
           isLLDB = true;
         }
       );
-      formatter = forAllSystems (system: pkgsBySystem.${system}.nixfmt-rfc-style);
+      formatter = forAllSystems (system: pkgsBySystem.${system}.nixfmt-tree);
     };
 }