diff --git a/sys/Makefile b/sys/Makefile
index 3d36e51db9ea..fc5e45738097 100644
--- a/sys/Makefile
+++ b/sys/Makefile
@@ -1,9 +1,32 @@
-#	$NetBSD: Makefile,v 1.61 2007/09/11 00:44:04 pooka Exp $
+#	$NetBSD: Makefile,v 1.62 2007/09/16 21:42:23 pooka Exp $
 
 SUBDIR=	altq arch compat dev fs miscfs \
 	net net80211 netatalk netbt netipsec netinet netinet6 \
         netisdn netiso netkey netnatm netsmb \
-	nfs opencrypto rump sys ufs uvm
+	nfs opencrypto sys ufs uvm
+
+.if (${MACHINE} != "x68k" \
+  && ${MACHINE} != "vax" \
+  && ${MACHINE} != "sun3" \
+  && ${MACHINE} != "sun2" \
+  && ${MACHINE} != "next68k" \
+  && ${MACHINE} != "news68k" \
+  && ${MACHINE} != "mvme68k" \
+  && ${MACHINE} != "mmeye" \
+  && ${MACHINE} != "mac68k" \
+  && ${MACHINE} != "luna68k" \
+  && ${MACHINE} != "landisk" \
+  && ${MACHINE} != "hpcsh" \
+  && ${MACHINE} != "hp300" \
+  && ${MACHINE} != "evbsh3-sh3el" \
+  && ${MACHINE} != "evbsh3-sh3eb" \
+  && ${MACHINE} != "evbppc" \
+  && ${MACHINE} != "dreamcast" \
+  && ${MACHINE} != "cesfic" \
+  && ${MACHINE} != "atari" \
+  && ${MACHINE} != "amiga")
+SUBDIR+=	rump
+.endif
 
 .if (${MACHINE} != "evbppc")
 SUBDIR+=lkm