diff --git a/contrib/examples/mdns/mdns_example.c b/contrib/examples/mdns/mdns_example.c
index f5cc0585..208048a2 100644
--- a/contrib/examples/mdns/mdns_example.c
+++ b/contrib/examples/mdns/mdns_example.c
@@ -56,8 +56,8 @@ mdns_example_init(void)
 #if LWIP_MDNS_RESPONDER
   mdns_resp_register_name_result_cb(mdns_example_report);
   mdns_resp_init();
-  mdns_resp_add_netif(netif_default, "lwip", 3600);
-  mdns_resp_add_service(netif_default, "myweb", "_http", DNSSD_PROTO_TCP, 80, 3600, srv_txt, NULL);
+  mdns_resp_add_netif(netif_default, "lwip");
+  mdns_resp_add_service(netif_default, "myweb", "_http", DNSSD_PROTO_TCP, 80, srv_txt, NULL);
   mdns_resp_announce(netif_default);
 #endif
 }
diff --git a/src/Filelists.cmake b/src/Filelists.cmake
index 21830332..6003c6fc 100644
--- a/src/Filelists.cmake
+++ b/src/Filelists.cmake
@@ -199,6 +199,8 @@ set(lwipsntp_SRCS
 # MDNS responder
 set(lwipmdns_SRCS
     ${LWIP_DIR}/src/apps/mdns/mdns.c
+    ${LWIP_DIR}/src/apps/mdns/mdns_out.c
+    ${LWIP_DIR}/src/apps/mdns/mdns_domain.c
 )
 
 # NetBIOS name server
diff --git a/src/Filelists.mk b/src/Filelists.mk
index 65ebda9e..7e076f34 100644
--- a/src/Filelists.mk
+++ b/src/Filelists.mk
@@ -177,7 +177,9 @@ SMTPFILES=$(LWIPDIR)/apps/smtp/smtp.c
 SNTPFILES=$(LWIPDIR)/apps/sntp/sntp.c
 
 # MDNSFILES: MDNS responder
-MDNSFILES=$(LWIPDIR)/apps/mdns/mdns.c
+MDNSFILES=$(LWIPDIR)/apps/mdns/mdns.c \
+	$(LWIPDIR)/apps/mdns/mdns_out.c \
+	$(LWIPDIR)/apps/mdns/mdns_domain.c
 
 # NETBIOSNSFILES: NetBIOS name server
 NETBIOSNSFILES=$(LWIPDIR)/apps/netbiosns/netbiosns.c
diff --git a/src/apps/mdns/mdns_domain.c b/src/apps/mdns/mdns_domain.c
index c83d055b..2ad92213 100644
--- a/src/apps/mdns/mdns_domain.c
+++ b/src/apps/mdns/mdns_domain.c
@@ -41,6 +41,8 @@
 #include "lwip/apps/mdns_priv.h"
 #include "lwip/prot/dns.h"
 
+#include <string.h>
+
 #if LWIP_IPV6
 #include "lwip/prot/ip6.h"
 #endif
diff --git a/src/apps/mdns/mdns_out.c b/src/apps/mdns/mdns_out.c
index 2b9cf328..ac4d37ac 100644
--- a/src/apps/mdns/mdns_out.c
+++ b/src/apps/mdns/mdns_out.c
@@ -43,6 +43,7 @@
 #include "lwip/prot/iana.h"
 #include "lwip/udp.h"
 
+#include <string.h>
 
 #if LWIP_IPV6
 #include "lwip/prot/ip6.h"