diff --git a/.emacs.d/init.el b/.emacs.d/init.el
index 01e580d..c2c1469 100644
--- a/.emacs.d/init.el
+++ b/.emacs.d/init.el
@@ -74,6 +74,9 @@ One will be created if none exist."
 
 (add-hook 'prog-mode-hook 'indent-tab-hook)
 (add-hook 'sgml-mode-hook 'indent-spc-hook)
+(add-hook 'nix-mode-hook #'(lambda ()
+                            (indent-spc-hook)
+                            (setq-local tab-width 2)))
 
 (defun lisp-hook ()
   (indent-spc-hook)