diff --git a/man/jail.conf.5 b/man/jail.conf.5
index 8f281ce4..2de42d7c 100644
--- a/man/jail.conf.5
+++ b/man/jail.conf.5
@@ -45,6 +45,8 @@ identical entries, parsed alphabetically, e.g.
 .RE
 .RE
 
+Comments: use '#' for comment lines and ';' (following a space) for inline comments
+
 .SH DEFAULT
 The following options are applicable to all jails. Their meaning is described in the default \fIjail.conf\fR file.
 .TP