Index: uspace/lib/c/include/net/ip_protocols.h
===================================================================
--- uspace/lib/c/include/net/ip_protocols.h	(revision fe5d3c1b64b0aa0d725ebec36da66268182df69e)
+++ uspace/lib/c/include/net/ip_protocols.h	(revision 28384868fe6a9bbe937ea13e4dd739b2076b2539)
@@ -44,7 +44,8 @@
 /*@{*/
 
-#define IPPROTO_ICMP	1
-#define IPPROTO_TCP	6
-#define IPPROTO_UDP	17
+#define IPPROTO_ICMP    1
+#define IPPROTO_TCP     6
+#define IPPROTO_UDP     17
+#define IPPROTO_ICMPV6  58
 
 /*@}*/