diff --git a/include/linux/mount.h b/include/linux/mount.h
index 6904ad33ee7a..1a3136e53eaa 100644
--- a/include/linux/mount.h
+++ b/include/linux/mount.h
@@ -65,7 +65,8 @@ enum mount_flags {
 	MNT_ATIME_MASK = MNT_NOATIME | MNT_NODIRATIME | MNT_RELATIME,
 
 	MNT_INTERNAL_FLAGS = MNT_SHARED | MNT_WRITE_HOLD | MNT_INTERNAL |
-			     MNT_DOOMED | MNT_SYNC_UMOUNT | MNT_MARKED,
+			     MNT_DOOMED | MNT_SYNC_UMOUNT | MNT_MARKED |
+			     MNT_LOCKED,
 };
 
 struct vfsmount {