diff --git a/src/include/lwip/sockets.h b/src/include/lwip/sockets.h
index 4d6e055a..853beea8 100644
--- a/src/include/lwip/sockets.h
+++ b/src/include/lwip/sockets.h
@@ -167,10 +167,12 @@ struct linger {
 #define PF_UNSPEC       AF_UNSPEC
 
 #define IPPROTO_IP      0
+#define IPPROTO_ICMP    1 
 #define IPPROTO_TCP     6
 #define IPPROTO_UDP     17
 #if LWIP_IPV6
 #define IPPROTO_IPV6    41
+#define IPPROTO_ICMPV6  58
 #endif /* LWIP_IPV6 */
 #define IPPROTO_UDPLITE 136