diff --git a/libc/kernel/uapi/linux/tcp.h b/libc/kernel/uapi/linux/tcp.h
index 2ca37a6..99c5bff 100644
--- a/libc/kernel/uapi/linux/tcp.h
+++ b/libc/kernel/uapi/linux/tcp.h
@@ -220,6 +220,7 @@
   TCP_NLA_TIMEOUT_REHASH,
   TCP_NLA_BYTES_NOTSENT,
   TCP_NLA_EDT,
+  TCP_NLA_TTL,
 };
 #define TCP_MD5SIG_MAXKEYLEN 80
 #define TCP_MD5SIG_FLAG_PREFIX 0x1
@@ -249,5 +250,9 @@
   __u64 copybuf_address;
   __s32 copybuf_len;
   __u32 flags;
+  __u64 msg_control;
+  __u64 msg_controllen;
+  __u32 msg_flags;
+  __u32 reserved;
 };
 #endif