diff --git a/libc/kernel/uapi/linux/socket.h b/libc/kernel/uapi/linux/socket.h
index be16548..49dce45 100644
--- a/libc/kernel/uapi/linux/socket.h
+++ b/libc/kernel/uapi/linux/socket.h
@@ -32,4 +32,7 @@
 #define SOCK_SNDBUF_LOCK 1
 #define SOCK_RCVBUF_LOCK 2
 #define SOCK_BUF_LOCK_MASK (SOCK_SNDBUF_LOCK | SOCK_RCVBUF_LOCK)
+#define SOCK_TXREHASH_DEFAULT ((u8) - 1)
+#define SOCK_TXREHASH_DISABLED 0
+#define SOCK_TXREHASH_ENABLED 1
 #endif