diff --git a/nixos/modules/services/misc/nix-daemon.nix b/nixos/modules/services/misc/nix-daemon.nix
index 1f7d6e0f17e..7e092e5b8b8 100644
--- a/nixos/modules/services/misc/nix-daemon.nix
+++ b/nixos/modules/services/misc/nix-daemon.nix
@@ -595,8 +595,9 @@ in
     nix.systemFeatures = mkDefault (
       [ "nixos-test" "benchmark" "big-parallel" "kvm" ] ++
       optionals (pkgs.hostPlatform.platform ? gcc.arch) (
-        # a x86_64 builder can run code for `platform.gcc.arch` and inferior architectures:
-        [ "gccarch-${pkgs.hostPlatform.platform.gcc.arch}" ] ++ map (x: "gccarch-${x}") lib.systems.architectures.inferiors.${pkgs.hostPlatform.platform.gcc.arch}
+        # a builder can run code for `platform.gcc.arch` and inferior architectures
+        [ "gccarch-${pkgs.hostPlatform.platform.gcc.arch}" ] ++
+        map (x: "gccarch-${x}") lib.systems.architectures.inferiors.${pkgs.hostPlatform.platform.gcc.arch}
       )
     );