diff --git a/flake.nix b/flake.nix
index 46e8d94..5f01a80 100644
--- a/flake.nix
+++ b/flake.nix
@@ -23,11 +23,20 @@
       forAllSystems = nixpkgs.lib.genAttrs nixpkgs.lib.systems.flakeExposed;
     in {
       lib = nixpkgs.lib.extend (final: prev: {
-        nixosSystem = (args: prev.nixosSystem {
-          modules = args.modules ++ [
-            ({ ... }: { nixpkgs.overlays = overlays; })
-          ];
-        } // builtins.removeAttrs args [ "modules" ]);
+        nixosSystem = args:
+          import "${nixpkgs}/nixos/lib/eval-config.nix" (
+            {
+              lib = final;
+
+              system = null;
+
+              modules = args.modules ++ [
+                ({ config, pkgs, lib, ... }: {
+                  config.nixpkgs.flake.source = self.outPath;
+                })
+              ];
+            } // builtins.removeAttrs args [ "modules" ]
+          );
       });
 
       legacyPackages = forAllSystems (system: