From 67b6e5639126ab6e8ec5d2b303aa9736a626b609 Mon Sep 17 00:00:00 2001
From: Matthew Bauer <mjbauer95@gmail.com>
Date: Thu, 30 Jul 2020 21:38:24 -0500
Subject: [PATCH] nixos/nix-daemon.nix: fix nix.distributedBuilds assertion

---
 nixos/modules/services/misc/nix-daemon.nix | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/nixos/modules/services/misc/nix-daemon.nix b/nixos/modules/services/misc/nix-daemon.nix
index 971ecdf48e18f..924a007efc6dd 100644
--- a/nixos/modules/services/misc/nix-daemon.nix
+++ b/nixos/modules/services/misc/nix-daemon.nix
@@ -502,7 +502,7 @@ in
 
     assertions = [
       {
-        assertion = (!config.nix.distributedBuilds) && config.nix.buildMachines != [];
+        assertion = config.nix.distributedBuilds || config.nix.buildMachines == [];
         message = "You must set `nix.distributedBuilds = true` to use nix.buildMachines";
       }
     ];