diff --git a/check.t b/check.t
index f8e3456..6fc98a5 100644
--- a/check.t
+++ b/check.t
@@ -1,4 +1,4 @@
-# $MirOS: src/bin/mksh/check.t,v 1.172 2008/04/01 21:39:44 tg Exp $
+# $MirOS: src/bin/mksh/check.t,v 1.173 2008/04/02 17:09:45 tg Exp $
 # $OpenBSD: bksl-nl.t,v 1.2 2001/01/28 23:04:56 niklas Exp $
 # $OpenBSD: history.t,v 1.5 2001/01/28 23:04:56 niklas Exp $
 # $OpenBSD: read.t,v 1.3 2003/03/10 03:48:16 david Exp $
@@ -4327,7 +4327,8 @@ description:
 	Check that we can execute BOM-shebangs
 	XXX if the OS can already execute them, we lose
 	note: cygwin execve(2) doesn't return to us with ENOEXEC, we lose
-category: pdksh,!os:cygwin,!os:uwin-nt
+	note: Ultrix perl5 t4 returns 65280 (exit-code 255) and no text
+category: pdksh,!os:cygwin,!os:uwin-nt,!os:ultrix
 env-setup: !FOO=BAR!
 stdin:
 	print '#!'"$__progname"'\nprint "a=$ENV{FOO}";' >t1