diff --git a/example.cfg b/example.cfg
index 3a61fdc..70b2117 100644
--- a/example.cfg
+++ b/example.cfg
@@ -28,7 +28,8 @@ fileext = .vcf
 type = carddav
 #item_types = VTODO,VEVENT
 url = https://owncloud.example.com/remote.php/carddav/addressbooks/bob/default/
-#username =  # blabla
+#auth = basic  # basic|digest
+#username =  # for http auth, if empty, no auth will be used
 #password =  # can also be fetched from the system password storage or netrc
 
 #true: The NSA can spy on you with some effort
@@ -51,6 +52,7 @@ fileext = .ics
 [storage bob_calendar_remote]
 type = caldav
 url = https://owncloud.example.com/remote.php/caldav/calendars/bob/
+#auth = basic
 #username =
 #password =
 #verify = True
@@ -72,6 +74,7 @@ url = https://owncloud.example.com/remote.php/caldav/calendars/bob/
 [storage bob_calendar_remote]
 type = http
 url = https://example.com/holidays.ics
+#auth = basic
 #username =
 #password =
 #verify = True