diff --git a/libc/kernel/uapi/linux/in.h b/libc/kernel/uapi/linux/in.h
index f1dab00..99b54cc 100644
--- a/libc/kernel/uapi/linux/in.h
+++ b/libc/kernel/uapi/linux/in.h
@@ -74,8 +74,12 @@
 #define IPPROTO_UDPLITE IPPROTO_UDPLITE
   IPPROTO_MPLS = 137,
 #define IPPROTO_MPLS IPPROTO_MPLS
+  IPPROTO_ETHERNET = 143,
+#define IPPROTO_ETHERNET IPPROTO_ETHERNET
   IPPROTO_RAW = 255,
 #define IPPROTO_RAW IPPROTO_RAW
+  IPPROTO_MPTCP = 262,
+#define IPPROTO_MPTCP IPPROTO_MPTCP
   IPPROTO_MAX
 };
 #endif