diff --git a/dotfiles/nvim/lua/configs/conform.lua b/dotfiles/nvim/lua/configs/conform.lua
index 21c8f42..97c034f 100644
--- a/dotfiles/nvim/lua/configs/conform.lua
+++ b/dotfiles/nvim/lua/configs/conform.lua
@@ -8,6 +8,7 @@ local options = {
     typescript = { "eslint_d" },
     php = { "php_cs_fixer" },
     python = { "black" },
+    nix = { "alejandra" },
   },
   format_on_save = {
     timeout_ms = 15000,