diff --git a/certbot/docs/using.rst b/certbot/docs/using.rst
index c9bbaf324..07406c356 100644
--- a/certbot/docs/using.rst
+++ b/certbot/docs/using.rst
@@ -1151,7 +1151,8 @@ certbot will begin rotating logs once there are 1000 logs in the log directory.
 Meaning that once 1000 files are in ``/var/log/letsencrypt`` Certbot will delete
 the oldest one to make room for new logs. The number of subsequent logs can be
 changed by passing the desired number to the command line flag
-``--max-log-backups``.
+``--max-log-backups``. Setting this flag to 0 disables log rotation entirely,
+causing certbot to always append to the same log file.
 
 .. note:: Some distributions, including Debian and Ubuntu, disable
    certbot's internal log rotation in favor of a more traditional