--- Makefile.orig	2009-08-21 16:21:27.000000000 +0200
+++ Makefile	2009-08-21 16:21:53.000000000 +0200
@@ -160,6 +160,7 @@
 do-install:
 	${MKDIR} ${KMODDIR}
 	${INSTALL_KLD} ${WRKSRC}/out/${KMK_ARCH}/${KMK_BUILDTYPE}/bin/vboxdrv.ko ${KMODDIR}
+	${INSTALL_KLD} ${WRKSRC}/out/${KMK_ARCH}/${KMK_BUILDTYPE}/bin/vboxnetflt.ko ${KMODDIR}
 
 	${MKDIR} ${DATADIR}
 	(cd ${WRKSRC}/out/${KMK_ARCH}/${KMK_BUILDTYPE}/bin/sdk/bindings/xpcom && ${COPYTREE_SHARE} "idl samples" ${DATADIR})