diff --git a/offlineimap.conf b/offlineimap.conf
index 9483d93..6f3cda4 100644
--- a/offlineimap.conf
+++ b/offlineimap.conf
@@ -649,7 +649,8 @@ remotehost = examplehost
 # disable STARTTLS. Unless you hit issues with STARTTLS, you are strongly
 # encouraged to keep STARTTLS enabled.
 #
-# STARTTLS can be used even if the 'ssl' option is disabled.
+# STARTTLS can be used even if the 'ssl' option is disabled. If you want to
+# _force_ STARTTLS, make sure to disable 'ssl'.
 #
 # Default is yes.
 #