diff --git a/appl/kx/tenletxr.in b/appl/kx/tenletxr.in
index 1a66982ca..bed987185 100644
--- a/appl/kx/tenletxr.in
+++ b/appl/kx/tenletxr.in
@@ -1,11 +1,12 @@
 #!/bin/sh
 # $Id$
 #
-usage="Usage: $0 [-l username] host [port]"
+usage="Usage: $0 [-l username] [-k] host [port]"
 while true
 do
   case $1 in
   -l) kx_args="${kx_args} -l $2"; shift 2;;
+  -k) kx_args="${kx_args} -k"; shift;;
   -*) echo "$0: Bad option $1"; echo $usage; exit 1;;
   *) break;;
   esac