diff --git a/docs/chapters/subcommands/rdr.rst b/docs/chapters/subcommands/rdr.rst
index ac7af3c6..8a6e2fd0 100644
--- a/docs/chapters/subcommands/rdr.rst
+++ b/docs/chapters/subcommands/rdr.rst
@@ -14,7 +14,7 @@ specify the interface they run on in rc.conf (or other config files)
 .. code-block:: shell
 
     # bastille rdr --help
-    Usage: bastille rdr TARGET [clear] | [list] | [tcp <host_port> <jail_port>] | [udp <host_port> <jail_port>]
+    Usage: bastille rdr TARGET [clear] | [list] | [<interface> tcp <host_port> <jail_port>] | [<interface> udp <host_port> <jail_port>]
     # bastille rdr dev1 tcp 2001 22
     # bastille rdr dev1 list
     rdr on em0 inet proto tcp from any to any port = 2001 -> 10.17.89.1 port 22