diff --git a/lua/lazyvim/plugins/extras/lang/nix.lua b/lua/lazyvim/plugins/extras/lang/nix.lua
index 76a42ebe..ed90dc32 100644
--- a/lua/lazyvim/plugins/extras/lang/nix.lua
+++ b/lua/lazyvim/plugins/extras/lang/nix.lua
@@ -3,6 +3,10 @@ return {
     ft = "nix",
     root = "flake.nix",
   },
+  {
+    "williamboman/mason.nvim",
+    opts = { ensure_installed = { "nixfmt" } },
+  },
   {
     "nvim-treesitter/nvim-treesitter",
     opts = { ensure_installed = { "nix" } },