diff --git a/shell.nix b/shell.nix
index 8ab016a..bf5011d 100644
--- a/shell.nix
+++ b/shell.nix
@@ -3,6 +3,8 @@ pkgs.mkShell {
 	nativeBuildInputs = with pkgs.buildPackages; [
 		bmake
 		clang
+
+		lua53Packages.ldoc
 	];
 	shellHook = "alias make=bmake";
 }