diff --git a/include/linux/if_bridge.h b/include/linux/if_bridge.h
index 44d6eb0..fd22789 100644
--- a/include/linux/if_bridge.h
+++ b/include/linux/if_bridge.h
@@ -38,5 +38,6 @@
 extern br_should_route_hook_t __rcu *br_should_route_hook;
 int br_multicast_list_adjacent(struct net_device *dev,
 			       struct list_head *br_ip_list);
+bool br_multicast_has_querier_adjacent(struct net_device *dev, int proto);
 
 #endif