diff --git a/flake.nix b/flake.nix
index c686301..66e5f5d 100644
--- a/flake.nix
+++ b/flake.nix
@@ -81,7 +81,7 @@
     };
 
     devShell = pkgs.mkShell {
-      RUST_SRC_PATH = "${pkgs.rustPlatform.rustcSrc}/library";
+      RUST_SRC_PATH = "${pkgs.rustPlatform.rustLibSrc}";
       NIX_PATH = "nixpkgs=${pkgs.path}";
 
       inputsFrom = [ defaultPackage packages.manualFast ];
diff --git a/src/nix/hive/options.nix b/src/nix/hive/options.nix
index 04108ff..0db53c5 100644
--- a/src/nix/hive/options.nix
+++ b/src/nix/hive/options.nix
@@ -93,6 +93,7 @@ with builtins; rec {
   # Largely compatible with NixOps/Morph.
   deploymentOptions = { name, lib, ... }: let
     inherit (lib) types;
+    mdDoc = lib.mdDoc or lib.id;
   in {
     options = {
       deployment = {