diff --git a/dot.mkshrc b/dot.mkshrc
index 23b0a09..05e37c6 100644
--- a/dot.mkshrc
+++ b/dot.mkshrc
@@ -1,5 +1,5 @@
 # $Id$
-# $MirOS: src/bin/mksh/dot.mkshrc,v 1.119 2017/08/08 20:50:34 tg Exp $
+# $MirOS: src/bin/mksh/dot.mkshrc,v 1.120 2017/08/08 20:52:11 tg Exp $
 #-
 # Copyright (c) 2002, 2003, 2004, 2006, 2007, 2008, 2009, 2010,
 #		2011, 2012, 2013, 2014, 2015, 2016, 2017
@@ -617,6 +617,7 @@ done
 #\\builtin export LANG=C LC_CTYPE=$p LC_MEASUREMENT=$p LC_MESSAGES=$p LC_PAPER=$p
 #\\builtin set -U
 
+p=$(\\builtin whence -p jupp) && EDITOR=$p
 \\builtin unset p
 
 \: place customisations above this line