From 4194b682500ee1e40b575e9729a8ddcbb6ac1518 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Janne=20He=C3=9F?= <janne@hess.ooo>
Date: Fri, 10 Dec 2021 12:58:12 +0100
Subject: [PATCH] doc: Fix command for distributed builds

We also need to build impurely or the <nixpkgs> lookup will not work.
---
 doc/manual/src/advanced-topics/distributed-builds.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/doc/manual/src/advanced-topics/distributed-builds.md b/doc/manual/src/advanced-topics/distributed-builds.md
index 580b36736..c4c60db15 100644
--- a/doc/manual/src/advanced-topics/distributed-builds.md
+++ b/doc/manual/src/advanced-topics/distributed-builds.md
@@ -53,8 +53,8 @@ example, the following command allows you to build a derivation for
 $ uname
 Linux
 
-$ nix build \
-  '(with import <nixpkgs> { system = "x86_64-darwin"; }; runCommand "foo" {} "uname > $out")' \
+$ nix build --impure \
+  --expr '(with import <nixpkgs> { system = "x86_64-darwin"; }; runCommand "foo" {} "uname > $out")' \
   --builders 'ssh://mac x86_64-darwin'
 [1/0/1 built, 0.0 MiB DL] building foo on ssh://mac