diff --git a/flake.nix b/flake.nix
index f4b8ee4dbf..5e29c0c8df 100644
--- a/flake.nix
+++ b/flake.nix
@@ -355,7 +355,7 @@
           };
       in
       {
-        formatter = pkgs.nixpkgs-fmt;
+        formatter = pkgs.nixfmt-rfc-style;
 
         packages =
           mkRustPackages "aarch64-linux" //