diff --git a/sys/arch/x68k/stand/libsa/Makefile b/sys/arch/x68k/stand/libsa/Makefile
index 5dbf18b1cc3b..be15473f4dc4 100644
--- a/sys/arch/x68k/stand/libsa/Makefile
+++ b/sys/arch/x68k/stand/libsa/Makefile
@@ -1,4 +1,4 @@
-#	$NetBSD: Makefile,v 1.29 2012/10/12 20:15:52 tsutsui Exp $
+#	$NetBSD: Makefile,v 1.30 2015/07/25 06:58:37 isaki Exp $
 
 S=		${.CURDIR}/../../../..
 
@@ -9,7 +9,7 @@ CPPFLAGS+=	-I${.CURDIR}/../libiocs -I${.CURDIR}/../common
 CPPFLAGS+=	-D_STANDALONE
 CPPFLAGS+=	-DHEAP_VARIABLE
 CPPFLAGS+=	-DHAVE_CHANGEDISK_HOOK
-CPPFLAGS+=	-DUSTAR_SECT_PER_CYL=16
+CPPFLAGS+=	-DUSTAR_SECT_PER_CYL=30
 CPPFLAGS+=	-DLIBSA_ENABLE_LS_OP
 CPPFLAGS+=	-DSUPPORT_BOOTP -DSUPPORT_DHCP
 #CPPFLAGS+=	-DDEBUG