diff --git a/default.nix b/default.nix
index 8b090780..a52d21d0 100644
--- a/default.nix
+++ b/default.nix
@@ -1,3 +1,2 @@
 { pkgs }:
-let cargo_nix = pkgs.callPackage ./Cargo.nix {};
-in cargo_nix.rootCrate.build
+(import ./Cargo.nix { inherit pkgs; }).rootCrate.build