diff --git a/share/man/man8/man8.prep/Makefile b/share/man/man8/man8.prep/Makefile
new file mode 100644
index 000000000000..564123278068
--- /dev/null
+++ b/share/man/man8/man8.prep/Makefile
@@ -0,0 +1,7 @@
+#	@(#)Makefile	5.1 (Berkeley) 3/22/91
+#	$NetBSD: Makefile,v 1.3 2006/03/23 18:54:43 garbled Exp $
+
+MAN=	boot.8 mkbootimage.8
+MANSUBDIR=/prep
+
+.include <bsd.man.mk>