diff --git a/booking_service.py b/booking_service.py
index 6cc504e..d430a37 100755
--- a/booking_service.py
+++ b/booking_service.py
@@ -53,7 +53,7 @@ def main(host, port, db, interval, debug, tz, special,
     wrk = worker.Worker(loop, db_mngr, tm=tm, mail=mail, debug=debug)
     loop.create_task(wrk.run())
 
-    app = interface.App(db_mngr)
+    app = interface.App(db_mngr, base_url=url)
     loop.create_task(app.register_server(host, port))
 
     loop.run_forever()
diff --git a/punkow/service/interface.py b/punkow/service/interface.py
index d1fb4c5..691a0ab 100644
--- a/punkow/service/interface.py
+++ b/punkow/service/interface.py
@@ -230,8 +230,9 @@ def simple_view(template):
 
 
 class App(object):
-    def __init__(self, database_manager: model.DatabaseManager):
+    def __init__(self, database_manager: model.DatabaseManager, base_url: str):
         self.db = database_manager
+        self.base_url = base_url
         self.app = web.Application()
 
         self.setup_app()
@@ -243,6 +244,7 @@ class App(object):
             self.app, loader=jinja2.FileSystemLoader(os.path.join(os.path.dirname(__file__), 'templates')))
 
         self.app['static_root_url'] = '/static'
+        self.app['cfg_base_url'] = self.base_url
 
     def setup_routes(self):
         self.app.router.add_static('/static/',
diff --git a/punkow/service/templates/index.html b/punkow/service/templates/index.html
index 377053b..75590c9 100644
--- a/punkow/service/templates/index.html
+++ b/punkow/service/templates/index.html
@@ -25,7 +25,7 @@
 
     <h4>INSTRUCTIONS:</h4>
 
-    <p>Keep Punkow (<a href="https://punkow.jonesinski.de">punkow.jonesinski.de</a>) open and open a new window of your
+    <p>Keep Punkow (<a href="{{ app.cfg_base_url }}">{{ app.cfg_base_url }}</a>) open and open a new window of your
         internet browser.</p>
 
     <p>Select the service you want to book at: