diff --git a/app/include/lwip/netif.h b/app/include/lwip/netif.h
index 8c9cf2f2..4aad49f2 100644
--- a/app/include/lwip/netif.h
+++ b/app/include/lwip/netif.h
@@ -170,6 +170,7 @@ struct netif {
   /** the DHCP client state information for this netif */
   struct dhcp *dhcp;
   struct udp_pcb *dhcps_pcb;	//dhcps
+  void *pad;
 #endif /* LWIP_DHCP */
 #if LWIP_AUTOIP
   /** the AutoIP client state information for this netif */