diff --git a/sys/modules/Makefile b/sys/modules/Makefile
index d9720a6ae99..40f0eb92469 100644
--- a/sys/modules/Makefile
+++ b/sys/modules/Makefile
@@ -59,6 +59,7 @@ SUBDIR=	3dfx \
 	mac_none \
 	mac_seeotheruids \
 	mac_test \
+	mcd \
 	md \
 	mii \
 	mlx \