diff --git a/source/conf.py b/source/conf.py
index 01142ff..b710aae 100644
--- a/source/conf.py
+++ b/source/conf.py
@@ -28,4 +28,8 @@ html_static_path = ['_static']
 
 # Translation stuff
 locale_dirs = ['locale/']   # path is example but recommended.
-gettext_compact = False     # optional.
\ No newline at end of file
+gettext_compact = False     # optional.
+
+html_theme_options = {
+    "announcement": "<em>Diese Dokumentation befindet sich noch im Aufbau und wird nach für nach vervollständigt.</em>",
+}
\ No newline at end of file