diff --git a/app.js b/app.js
index 2e3c582..562ca88 100755
--- a/app.js
+++ b/app.js
@@ -8,9 +8,12 @@ import {profile as dbnavProfile} from 'db-vendo-client/p/dbnav/index.js';
 import {mapRouteParsers} from 'db-vendo-client/lib/api-parsers.js';
 import {createHafasRestApi as createApi} from 'hafas-rest-api';
 
+const webdir_from_module = path.join(path.dirname(fileURLToPath(import.meta.url)), 'web');
+
 const config = {
 	hostname: process.env.HOSTNAME || 'localhost',
 	port: process.env.PORT ? parseInt(process.env.PORT) : 3000,
+	webdir: process.env.WEBDIR || webdir_from_module,
 	name: 'db-vendo-client',
 	description: 'db-vendo-client',
 	homepage: 'https://github.com/public-transport/db-vendo-client',
@@ -26,8 +29,6 @@ const config = {
 };
 
 const start = async () => {
-	const webdir = path.join(path.dirname(fileURLToPath(import.meta.url)), 'web');
-
 	const app = express();
 
 	const vendo = createClient(
@@ -38,7 +39,7 @@ const start = async () => {
 	const api = await createApi(vendo, config);
 
 	app.use("/api", api);
-	app.use('/', express.static(webdir));
+	app.use('/', express.static(config.webdir));
 
 	app.listen(config.port, (err) => {
 		if (err) {