diff --git a/kal/libc/newlib/porting/include/sys/socket.h b/kal/libc/newlib/porting/include/sys/socket.h
index 713a6408..78e094d0 100644
--- a/kal/libc/newlib/porting/include/sys/socket.h
+++ b/kal/libc/newlib/porting/include/sys/socket.h
@@ -128,12 +128,16 @@ struct linger {
 #define PF_UNIX         PF_LOCAL
 #define PF_FILE         PF_LOCAL
 #define PF_INET         2
+#define PF_INET6        10
+#define PF_IPX          4
 
 #define AF_UNSPEC       PF_UNSPEC
 #define AF_LOCAL        PF_LOCAL
 #define AF_UNIX         AF_LOCAL
 #define AF_FILE         AF_LOCAL
 #define AF_INET         PF_INET
+#define AF_INET6        PF_INET6
+#define AF_IPX          PF_IPX
 
 #ifndef SO_DEBUG
 #define SO_DEBUG        1