diff --git a/ports/win32/pcapif.c b/ports/win32/pcapif.c
index 26e58ba..514ed9b 100644
--- a/ports/win32/pcapif.c
+++ b/ports/win32/pcapif.c
@@ -1048,6 +1048,9 @@ pcapif_init(struct netif *netif)
 
   netif->mtu = 1500;
   netif->flags = NETIF_FLAG_BROADCAST | NETIF_FLAG_ETHARP | NETIF_FLAG_ETHERNET | NETIF_FLAG_IGMP;
+#if LWIP_IPV6 && LWIP_IPV6_MLD
+  netif->flags |= NETIF_FLAG_MLD6;
+#endif /* LWIP_IPV6 && LWIP_IPV6_MLD */
   netif->hwaddr_len = ETH_HWADDR_LEN;
 
   NETIF_INIT_SNMP(netif, snmp_ifType_ethernet_csmacd, 100000000);