diff --git a/lua/filetypes.lua b/lua/filetypes.lua
index 7c232a4..06635db 100644
--- a/lua/filetypes.lua
+++ b/lua/filetypes.lua
@@ -12,5 +12,11 @@ vim.filetype.add({
 		end,
 		idr = "idris2",
 		wgsl = "wgsl",
+		nix = function(_, bufnr)
+			vim.bo[bufnr].shiftwidth = 2
+			vim.bo[bufnr].tabstop = 2
+			vim.bo[bufnr].expandtab = true
+			return "nix"
+		end,
 	},
 })