diff --git a/libc/kernel/uapi/linux/input-event-codes.h b/libc/kernel/uapi/linux/input-event-codes.h
index da90f1c..d8ae4c8 100644
--- a/libc/kernel/uapi/linux/input-event-codes.h
+++ b/libc/kernel/uapi/linux/input-event-codes.h
@@ -532,6 +532,7 @@
 #define BTN_DPAD_LEFT 0x222
 #define BTN_DPAD_RIGHT 0x223
 #define KEY_ALS_TOGGLE 0x230
+#define KEY_ROTATE_LOCK_TOGGLE 0x231
 #define KEY_BUTTONCONFIG 0x240
 #define KEY_TASKMANAGER 0x241
 #define KEY_JOURNAL 0x242