1 files changed, 1 insertions, 0 deletions

diff --git a/sys/ufs/mfs/mfs_vnops.c b/sys/ufs/mfs/mfs_vnops.c
index 9e27dcf23c6a..b4aa3d219f0f 100644
--- a/sys/ufs/mfs/mfs_vnops.c
+++ b/sys/ufs/mfs/mfs_vnops.c
@@ -79,6 +79,7 @@ static struct vnodeopv_entry_desc mfs_vnodeop_entries[] = {
 	{ &vop_print_desc,		(vop_t *) mfs_print },
 	{ &vop_reclaim_desc,		(vop_t *) mfs_reclaim },
 	{ &vop_strategy_desc,		(vop_t *) mfs_strategy },
+	{ &vop_copyonwrite_desc,	(vop_t *) vop_eopnotsupp },
 	{ &vop_unlock_desc,		(vop_t *) vop_defaultop },
 	{ NULL, NULL }
 };