diff --git a/flake.nix b/flake.nix
index cadb373..c802847 100644
--- a/flake.nix
+++ b/flake.nix
@@ -26,6 +26,7 @@
             gopls
             luaformatter
             nixd
+            nixfmt-rfc-style
             pyright
             rust-analyzer
             sumneko-lua-language-server