diff --git a/atomstrom.py b/atomstrom.py
index d385c5d..4ce9cf9 100755
--- a/atomstrom.py
+++ b/atomstrom.py
@@ -275,5 +275,7 @@ if __name__ == '__main__':
         mail_single_entries(session)
     if options.daily:
         mail_daily_digest(session)
+    if not (options.fetch or options.single or options.daily):
+        parser.print_help()
 
     session.commit()