diff --git a/appl/kx/rxtelnet.in b/appl/kx/rxtelnet.in
index fb0c06255..a35632e4c 100644
--- a/appl/kx/rxtelnet.in
+++ b/appl/kx/rxtelnet.in
@@ -3,6 +3,7 @@
 #
 usage="Usage: $0 [-l username] [-k] [-t args_to_telnet] [-x args_to_xterm] [-w term_emulator] host [port]"
 term=
+kx_args=-P
 while true
 do
   case $1 in