diff --git a/usr.sbin/mtree/Makefile b/usr.sbin/mtree/Makefile
index 4e650795d68c..f6b46ef68b9b 100644
--- a/usr.sbin/mtree/Makefile
+++ b/usr.sbin/mtree/Makefile
@@ -2,7 +2,8 @@
 # $FreeBSD$
 
 PROG=	mtree
-SRCS=	compare.c crc.c create.c misc.c mtree.c spec.c verify.c setflags.c
+SRCS=	compare.c crc.c create.c excludes.c misc.c mtree.c spec.c verify.c \
+	setflags.c
 MAN8=	mtree.8
 .PATH:	${.CURDIR}/../../usr.bin/cksum ${.CURDIR}/../../lib/libc/gen