diff --git a/default.nix b/default.nix
index 9c526ca8..63c86ade 100644
--- a/default.nix
+++ b/default.nix
@@ -1,4 +1,6 @@
 {sources ? import ./nix/sources.nix}: {
+  lib = import (sources.nixpkgs + "/lib");
+
   nixosConfigurations = builtins.mapAttrs (_: import (sources.nixpkgs + "/nixos/lib/eval-config.nix")) {
     vanadium = {
       system = "x86_64-linux";