diff --git a/src/include/ipv4/lwip/ip.h b/src/include/ipv4/lwip/ip.h
index beb482a3..bc3a4e19 100644
--- a/src/include/ipv4/lwip/ip.h
+++ b/src/include/ipv4/lwip/ip.h
@@ -84,8 +84,11 @@ err_t ip_output_if(struct pbuf *p, struct ip_addr *src, struct ip_addr *dest,
   u8_t tos;              \
   /* Time To Live */     \
   u8_t ttl;              \
+#if LWIP_NETIF_HWADDRHINT
   /* link layer address resolution hint */ \
   u8_t addr_hint
+#endif /* LWIP_NETIF_HWADDRHINT */
+
 
 /*
  * Option flags per-socket. These are the same like SO_XXX.
diff --git a/src/include/ipv6/lwip/ip.h b/src/include/ipv6/lwip/ip.h
index 71845fd2..bfb60533 100644
--- a/src/include/ipv6/lwip/ip.h
+++ b/src/include/ipv6/lwip/ip.h
@@ -70,8 +70,10 @@ extern "C" {
   u8_t tos;              \
   /* Time To Live */     \
   u8_t ttl;              \
+#if LWIP_NETIF_HWADDRHINT
   /* link layer address resolution hint */ \
   u8_t addr_hint
+#endif /* LWIP_NETIF_HWADDRHINT */
 
 
 /* The IPv6 header. */