diff --git a/nvim/plugins.nix b/nvim/plugins.nix
index 3daf5d1..564335b 100644
--- a/nvim/plugins.nix
+++ b/nvim/plugins.nix
@@ -143,12 +143,13 @@ in
     # FIXME: doesn't include formatters
     conform-nvim = {
       enable = true;
+      formatters.nixfmt.command = "${lib.getExe pkgs.nixfmt-rfc-style}";
       formattersByFt = {
         "_" = [ "trim_whitespace" ];
         c = [ "clang_format" ];
         cpp = [ "clang_format" ];
         lua = [ "stylua" ];
-        nix = [ "alejandra" ];
+        nix = [ "nixfmt" ];
         rust = [ "rustfmt" ];
         sh = [ "shfmt" ];
         toml = [ "taplo" ];