diff --git a/include/uapi/linux/if_bridge.h b/include/uapi/linux/if_bridge.h
index 18db14477bdd..ec3547234998 100644
--- a/include/uapi/linux/if_bridge.h
+++ b/include/uapi/linux/if_bridge.h
@@ -183,6 +183,8 @@ struct br_mdb_entry {
 #define MDB_TEMPORARY 0
 #define MDB_PERMANENT 1
 	__u8 state;
+#define MDB_FLAGS_OFFLOAD	(1 << 0)
+	__u8 flags;
 	__u16 vid;
 	struct {
 		union {