diff --git a/etc/ssh/sshd_config b/etc/ssh/sshd_config
index e3f11e6a..d559566e 100644
--- a/etc/ssh/sshd_config
+++ b/etc/ssh/sshd_config
@@ -54,6 +54,7 @@ ListenAddress ::
 
 # Use the internal SFTP to avoid having to find the external one. VERBOSE
 # logs transactions that sftp-server performs on behalf of the client.
+# See also http://serverfault.com/a/660325
 Subsystem sftp internal-sftp -l VERBOSE
 # If you wish to use the external one, uncomment the appropiate one
 # for your OS or find it somewhere.