diff --git a/sys/cddl/compat/opensolaris/sys/vnode.h b/sys/cddl/compat/opensolaris/sys/vnode.h
index 6044235d10a2..616e11a90104 100644
--- a/sys/cddl/compat/opensolaris/sys/vnode.h
+++ b/sys/cddl/compat/opensolaris/sys/vnode.h
@@ -257,7 +257,6 @@ zfs_vop_close(vnode_t *vp, int flag, int count, offset_t offset, cred_t *cr)
 {
 	int error, vfslocked;
 
-	ASSERT(flag == (FWRITE | FCREAT | FTRUNC | FOFFMAX));
 	ASSERT(count == 1);
 	ASSERT(offset == 0);