diff --git a/usr.sbin/fstyp/Makefile b/usr.sbin/fstyp/Makefile
index bfdc845bba4a..14b5d9dfd9c3 100644
--- a/usr.sbin/fstyp/Makefile
+++ b/usr.sbin/fstyp/Makefile
@@ -1,55 +1,55 @@
 # $FreeBSD$
 
 .include <src.opts.mk>
 
 PROG=	fstyp
 SRCS=	apfs.c cd9660.c exfat.c ext2fs.c fstyp.c geli.c hammer.c	\
 	hammer2.c hfsplus.c msdosfs.c ntfs.c ufs.c
 
 .if ${MK_ZFS} != "no"
 SRCS +=	zfs.c
 .endif
 
 MAN=	fstyp.8
 
 WARNS?=	2
 
 .if ${MK_ICONV} == "yes"
 CFLAGS+=	-DWITH_ICONV
 .endif
 
 .include <bsd.endian.mk>
 
 .if ${TARGET_ENDIANNESS} == 1234
 HAS_TESTS=
 SUBDIR.${MK_TESTS}+= tests
 .endif
 
 .if ${MK_ZFS} != "no"
 IGNORE_PRAGMA=  YES
 
-WARNS?=	0
+CFLAGS+= -DHAVE_ZFS
 CFLAGS.zfs.c+= -DIN_BASE
 CFLAGS.zfs.c+= -I${SRCTOP}/sys/contrib/openzfs/include
 CFLAGS.zfs.c+= -I${SRCTOP}/sys/contrib/openzfs/lib/libspl/include
 CFLAGS.zfs.c+= -I${SRCTOP}/sys/contrib/openzfs/lib/libspl/include/os/freebsd
 CFLAGS.zfs.c+= -I${SRCTOP}/sys/contrib/openzfs/module/icp/include
 CFLAGS.zfs.c+= -include ${SRCTOP}/sys/contrib/openzfs/include/os/freebsd/spl/sys/ccompile.h
 CFLAGS.zfs.c+= -DHAVE_ISSETUGID
 CFLAGS.zfs.c+= -include ${SRCTOP}/sys/modules/zfs/zfs_config.h
 .endif
 
 .for src in ${SRCS}
 .if ${src} != "zfs.c"
 CFLAGS.${src}+=-I${SRCTOP}/sys
 .endif
 .endfor
 
 
 LIBADD=	geom md ufs
 
 .if ${MK_ZFS} != "no"
 LIBADD+=nvpair zfs spl
 .endif
 
 .include <bsd.prog.mk>