diff --git a/net/bridge/br_multicast.c b/net/bridge/br_multicast.c
index a0e369179f6d..b257342c0860 100644
--- a/net/bridge/br_multicast.c
+++ b/net/bridge/br_multicast.c
@@ -517,7 +517,7 @@ struct net_bridge_port_group *br_multicast_new_port_group(
 	if (src)
 		memcpy(p->eth_addr, src, ETH_ALEN);
 	else
-		memset(p->eth_addr, 0xff, ETH_ALEN);
+		eth_broadcast_addr(p->eth_addr);
 
 	return p;
 }