From fa73a7f916025cfefa23ab2392d3d504b2bc467f Mon Sep 17 00:00:00 2001
From: Robin Stumm <serverkorken@gmail.com>
Date: Sun, 12 Feb 2017 01:18:37 +0100
Subject: [PATCH] home-environment: fix evaluation error on undefined
 `lang.base`

---
 modules/home-environment.nix | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/modules/home-environment.nix b/modules/home-environment.nix
index 4a770a59a..70889eb52 100644
--- a/modules/home-environment.nix
+++ b/modules/home-environment.nix
@@ -9,7 +9,8 @@ let
   languageSubModule = types.submodule {
     options = {
       base = mkOption {
-        type = types.str;
+        default = null;
+        type = types.nullOr types.str;
         description = ''
           The language to use unless overridden by a more specific option.
         '';