diff --git a/libc/kernel/uapi/linux/lirc.h b/libc/kernel/uapi/linux/lirc.h
index 20b08e9..a0ac24a 100644
--- a/libc/kernel/uapi/linux/lirc.h
+++ b/libc/kernel/uapi/linux/lirc.h
@@ -131,5 +131,6 @@
   RC_PROTO_RCMM24 = 25,
   RC_PROTO_RCMM32 = 26,
   RC_PROTO_XBOX_DVD = 27,
+  RC_PROTO_MAX = RC_PROTO_XBOX_DVD,
 };
 #endif