diff --git a/sys/modules/nmdm/Makefile b/sys/modules/nmdm/Makefile
new file mode 100644
index 000000000000..d74b7d3d6ac7
--- /dev/null
+++ b/sys/modules/nmdm/Makefile
@@ -0,0 +1,12 @@
+# $FreeBSD$
+
+.PATH: ${.CURDIR}/../../dev/nmdm
+
+KMOD=	nmdm
+SRCS=	nmdm.c
+SRCS+=	opt_compat.h vnode_if.h
+
+opt_compat.h:
+	echo "#define COMPAT_43 1" >opt_compat.h
+
+.include <bsd.kmod.mk>