diff --git a/default.nix b/default.nix
index 2d05311..113674a 100644
--- a/default.nix
+++ b/default.nix
@@ -7,7 +7,7 @@
       extraModules = if args ? extraModules then args.extraModules else [ ];
       extraOverlays = if args ? extraOverlays then args.extraOverlays else [ ];
       pkgs = flakes.nixpkgs;
-      configuration = import ./configuration.nix  {inherit extraOverlays system pkgs name flakes flakeOutputs;} ;
+      configuration = if args ? configuration then args.configuration else import ./configuration.nix  {inherit extraOverlays system pkgs name flakes flakeOutputs;} ;
     in
     {
       inherit name;