diff --git a/ChangeLog b/ChangeLog
index 5ac626bfd..c985a7ba5 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -25,6 +25,9 @@
    - djm@cvs.openbsd.org 2008/06/30 10:31:11
      [regress/{putty-transfer,putty-kex,putty-ciphers}.sh]
      remove "set -e" left over from debugging
+   - djm@cvs.openbsd.org 2008/06/30 10:43:03
+     [regress/conch-ciphers.sh]
+     explicitly disable conch options that could interfere with the test
  - (dtucker) [sftp-server.c] Bug #1447: fall back to racy rename if link
    returns EXDEV.  Patch from Mike Garrison, ok djm@
 h
@@ -4562,4 +4565,4 @@ h
    OpenServer 6 and add osr5bigcrypt support so when someone migrates
    passwords between UnixWare and OpenServer they will still work. OK dtucker@
 
-$Id: ChangeLog,v 1.5056 2008/07/04 07:10:30 dtucker Exp $
+$Id: ChangeLog,v 1.5057 2008/07/04 07:11:30 dtucker Exp $
diff --git a/regress/conch-ciphers.sh b/regress/conch-ciphers.sh
index c371d3030..84b190618 100644
--- a/regress/conch-ciphers.sh
+++ b/regress/conch-ciphers.sh
@@ -1,4 +1,4 @@
-#	$OpenBSD: conch-ciphers.sh,v 1.1 2008/06/28 13:57:25 djm Exp $
+#	$OpenBSD: conch-ciphers.sh,v 1.2 2008/06/30 10:43:03 djm Exp $
 #	Placed in the Public Domain.
 
 tid="conch ciphers"
@@ -6,8 +6,6 @@ tid="conch ciphers"
 DATA=/bin/ls
 COPY=${OBJ}/copy
 
-set -e
-
 if test "x$REGRESS_INTEROP_CONCH" != "xyes" ; then
 	fatal "conch interop tests not enabled"
 fi
@@ -18,9 +16,11 @@ for c in aes256-ctr aes256-cbc aes192-ctr aes192-cbc aes128-ctr aes128-cbc \
          cast128-cbc blowfish 3des-cbc ; do
 	verbose "$tid: cipher $c"
 	rm -f ${COPY}
-	${CONCH} --identity $OBJ/rsa --port $PORT --user $USER \
-	         --known-hosts $OBJ/known_hosts \
-	         127.0.0.1 cat ${DATA} > ${COPY} 2>/dev/null
+	# XXX the 2nd "cat" seems to be needed because of buggy FD handling
+	# in conch
+	${CONCH} --identity $OBJ/rsa --port $PORT --user $USER  -e none \
+	    --known-hosts $OBJ/known_hosts --notty --noagent --nox11 -n \
+	    127.0.0.1 "cat ${DATA}" 2>/dev/null | cat > ${COPY}
 	if [ $? -ne 0 ]; then
 		fail "ssh cat $DATA failed"
 	fi