diff --git a/arc-linux-uclibc/sys-include/netinet/tcp.h b/arc-linux-uclibc/sys-include/netinet/tcp.h
index 87099ec..e62e614 100644
--- a/arc-linux-uclibc/sys-include/netinet/tcp.h
+++ b/arc-linux-uclibc/sys-include/netinet/tcp.h
@@ -218,6 +218,11 @@
   u_int32_t	tcpi_snd_cwnd;
   u_int32_t	tcpi_advmss;
   u_int32_t	tcpi_reordering;
+
+  u_int32_t	tcpi_rcv_rtt;
+  u_int32_t	tcpi_rcv_space;
+
+  u_int32_t	tcpi_total_retrans;
 };
 
 #endif /* Misc.  */
diff --git a/arc-linux-uclibc/usr/include/netinet/tcp.h b/arc-linux-uclibc/usr/include/netinet/tcp.h
index 87099ec..e62e614 100644
--- a/arc-linux-uclibc/usr/include/netinet/tcp.h
+++ b/arc-linux-uclibc/usr/include/netinet/tcp.h
@@ -218,6 +218,11 @@
   u_int32_t	tcpi_snd_cwnd;
   u_int32_t	tcpi_advmss;
   u_int32_t	tcpi_reordering;
+
+  u_int32_t	tcpi_rcv_rtt;
+  u_int32_t	tcpi_rcv_space;
+
+  u_int32_t	tcpi_total_retrans;
 };
 
 #endif /* Misc.  */