diff --git a/src/core/netif.c b/src/core/netif.c
index 952d63df..6e968e2b 100644
--- a/src/core/netif.c
+++ b/src/core/netif.c
@@ -52,6 +52,7 @@
 #include "lwip/etharp.h"
 #include "lwip/stats.h"
 #include "lwip/sys.h"
+#include "lwip/tcpip.h"
 #if ENABLE_LOOPBACK
 #include "lwip/sys.h"
 #if LWIP_NETIF_LOOPBACK_MULTITHREADING