diff --git a/flake.nix b/flake.nix
index 6fff0a0..fe432c6 100644
--- a/flake.nix
+++ b/flake.nix
@@ -16,13 +16,18 @@
   in {
     defaultPackage.x86_64-linux = nixpkgs.stdenv.mkDerivation {
       pname = "knock";
-      version = "0.1.0-alpha";
+      version = "1.0.0-alpha";
       src = self;
 
       nativeBuildInputs = [ nixpkgs.makeWrapper ];
 
       buildInputs = [
-        (nixpkgs.python3.withPackages(python3Packages: [ python3Packages.python_magic ]))
+        (nixpkgs.python3.withPackages
+          (python3Packages: [
+            python3Packages.python_magic
+            python3Packages.xdg
+          ])
+        )
         libgourou-utils inept-epub
       ];
 
diff --git a/knock b/knock
index a54d07f..f037704 100644
--- a/knock
+++ b/knock
@@ -3,6 +3,7 @@
 import os, sys, argparse, subprocess, magic, shutil
 from pathlib import Path
 from getpass import getpass
+from xdg import xdg_config_home
 
 parser = argparse.ArgumentParser(prog='knock', description='Convert an ACSM file to a DRM-free EPUB file')
 parser.add_argument('acsm_file', metavar='file', type=str, help='the ACSM file to convert')
@@ -12,7 +13,7 @@ args = parser.parse_args()
 args.acsm_file = Path(args.acsm_file).expanduser().resolve()
 args.drm_file = args.acsm_file.with_suffix('.drm')
 args.epub_file = args.acsm_file.with_suffix('.epub')
-args.adobe_dir = Path('~/.config/knock').expanduser()
+args.adobe_dir = xdg_config_home() / 'knock'
 
 if not args.acsm_file.exists():
     sys.exit(f'ERROR: {str(args.acsm_file)} does not exist.')