diff --git a/src/apps/mdns/mdns.c b/src/apps/mdns/mdns.c
index c84f2a2d..aa1fd36b 100644
--- a/src/apps/mdns/mdns.c
+++ b/src/apps/mdns/mdns.c
@@ -1292,10 +1292,20 @@ mdns_init_outpacket(struct mdns_outpacket *out, struct mdns_packet *in)
 static void
 mdns_async_send_outpacket(void *arg)
 {
+  const ip_addr_t *mcast_destaddr;
   struct mdns_async_outpacket *outpkt = (struct mdns_async_outpacket *)arg;
   struct pbuf *p = outpkt->pbuf;
   /* Send delayed packet */
   LWIP_DEBUGF(MDNS_DEBUG, ("MDNS: Async sending packet len=%"U16_F"\n", p->tot_len));
+  if (IP_IS_V6_VAL(outpkt->dest_addr)) {
+#if LWIP_IPV6
+    mcast_destaddr = &v6group;
+#endif
+  } else {
+#if LWIP_IPV4
+    mcast_destaddr = &v4group;
+#endif
+  }
   udp_sendto_if(mdns_pcb, p, &outpkt->dest_addr, outpkt->dest_port, outpkt->netif);
   pbuf_free(p);
   outpkt->pbuf = NULL;
@@ -1498,7 +1508,7 @@ mdns_send_outpacket(struct mdns_outpacket *outpkt)
     if (outpkt->answers > 1) {
       struct mdns_async_outpacket *async_outpkt;
 
-      async_outpkt = (struct mdns_async_outpacket *)mem_malloc(sizeof(struct mdns_async_outpacket));
+      async_outpkt = mem_malloc(sizeof(struct mdns_async_outpacket));
       if (async_outpkt) {
         struct pbuf *p = outpkt->pbuf;
         u32_t msecs = 0;