diff --git a/nixos/modules/installer/tools/nixos-generate-config.pl b/nixos/modules/installer/tools/nixos-generate-config.pl
index c2a5ecbe9e2e..2e572ef02473 100644
--- a/nixos/modules/installer/tools/nixos-generate-config.pl
+++ b/nixos/modules/installer/tools/nixos-generate-config.pl
@@ -85,7 +85,7 @@ sub debug {
 
 
 # nixpkgs.system
-push @attrs, "nixpkgs.hostPlatform = lib.mkDefault \"@system@\";";
+push @attrs, "nixpkgs.hostPlatform = lib.mkDefault \"@hostPlatformSystem@\";";
 
 
 my $cpuinfo = read_file "/proc/cpuinfo";
diff --git a/nixos/modules/installer/tools/tools.nix b/nixos/modules/installer/tools/tools.nix
index 5133ad18f4bb..1e36d10b391f 100644
--- a/nixos/modules/installer/tools/tools.nix
+++ b/nixos/modules/installer/tools/tools.nix
@@ -35,7 +35,7 @@ let
     name = "nixos-generate-config";
     src = ./nixos-generate-config.pl;
     perl = "${pkgs.perl.withPackages (p: [ p.FileSlurp ])}/bin/perl";
-    system = pkgs.stdenv.hostPlatform.system;
+    hostPlatformSystem = pkgs.stdenv.hostPlatform.system;
     detectvirt = "${config.systemd.package}/bin/systemd-detect-virt";
     btrfs = "${pkgs.btrfs-progs}/bin/btrfs";
     inherit (config.system.nixos-generate-config) configuration desktopConfiguration;