diff --git a/nixos/modules/virtualisation/nixos-containers.nix b/nixos/modules/virtualisation/nixos-containers.nix
index 1f96fa2de491..ba5112aa6cec 100644
--- a/nixos/modules/virtualisation/nixos-containers.nix
+++ b/nixos/modules/virtualisation/nixos-containers.nix
@@ -488,9 +488,10 @@ in
                       extraConfig = { options, ... }: {
                         _file = "module at ${__curPos.file}:${toString __curPos.line}";
                         config = {
-                          nixpkgs = if options.nixpkgs?hostPlatform && host.options.nixpkgs.hostPlatform.isDefined
-                                    then { inherit (host.config.nixpkgs) hostPlatform; }
-                                    else { inherit (host.config.nixpkgs) localSystem; }
+                          nixpkgs =
+                            if options.nixpkgs?hostPlatform
+                            then { inherit (host.pkgs.stdenv) hostPlatform; }
+                            else { localSystem = host.pkgs.stdenv.hostPlatform; }
                           ;
                           boot.isContainer = true;
                           networking.hostName = mkDefault name;