diff --git a/include/netinet/tcp.h b/include/netinet/tcp.h
index b85844c8..652418be 100644
--- a/include/netinet/tcp.h
+++ b/include/netinet/tcp.h
@@ -50,6 +50,8 @@ enum {
 	TCP_NLA_BUSY,
 	TCP_NLA_RWND_LIMITED,
 	TCP_NLA_SNDBUF_LIMITED,
+	TCP_NLA_DATA_SEGS_OUT,
+	TCP_NLA_TOTAL_RETRANS,
 };
 
 #if defined(_GNU_SOURCE) || defined(_BSD_SOURCE)