diff --git a/flake.nix b/flake.nix
index 35dd316..e8798e4 100644
--- a/flake.nix
+++ b/flake.nix
@@ -13,7 +13,7 @@
     {
       packages = forAllSystems (system:
         let
-          pkgs = import nixpkgs { inherit system; };
+          pkgs = import nixpkgs { inherit system; config.allowUnfree = true; };
 
           kompas = pkgs.kdePackages.callPackage ./default.nix { };
           pname = "kompas3d-fhs";