From 268157dc83f8bbf421d983093715b6f667e976cf Mon Sep 17 00:00:00 2001
From: Martin Weinelt <hexa@darmstadt.ccc.de>
Date: Fri, 28 Jan 2022 02:00:25 +0100
Subject: [PATCH] nixos/nix-daemon: fix buildMachines eval

---
 nixos/modules/services/misc/nix-daemon.nix | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/nixos/modules/services/misc/nix-daemon.nix b/nixos/modules/services/misc/nix-daemon.nix
index 10f9a4afb36c..cd4408cef411 100644
--- a/nixos/modules/services/misc/nix-daemon.nix
+++ b/nixos/modules/services/misc/nix-daemon.nix
@@ -673,7 +673,7 @@ in
       text =
         concatMapStrings
           (machine:
-            (concatStringsSep " " [
+            (concatStringsSep " " ([
               "${optionalString (machine.sshUser != null) "${machine.sshUser}@"}${machine.hostName}"
               (if machine.system != null then machine.system else if machine.systems != [ ] then concatStringsSep "," machine.systems else "-")
               (if machine.sshKey != null then machine.sshKey else "-")
@@ -682,7 +682,7 @@ in
               (concatStringsSep "," machine.supportedFeatures)
               (concatStringsSep "," machine.mandatoryFeatures)
             ]
-            ++ optional (isNixAtLeast "2.4pre") (if machine.publicHostKey != null then machine.publicHostKey else "-"))
+            ++ optional (isNixAtLeast "2.4pre") (if machine.publicHostKey != null then machine.publicHostKey else "-")))
             + "\n"
           )
           cfg.buildMachines;