diff --git a/libc/kernel/uapi/linux/input-event-codes.h b/libc/kernel/uapi/linux/input-event-codes.h
index 96f285b..0fe5a14 100644
--- a/libc/kernel/uapi/linux/input-event-codes.h
+++ b/libc/kernel/uapi/linux/input-event-codes.h
@@ -528,6 +528,7 @@
 #define BTN_DPAD_RIGHT 0x223
 #define KEY_ALS_TOGGLE 0x230
 #define KEY_ROTATE_LOCK_TOGGLE 0x231
+#define KEY_REFRESH_RATE_TOGGLE 0x232
 #define KEY_BUTTONCONFIG 0x240
 #define KEY_TASKMANAGER 0x241
 #define KEY_JOURNAL 0x242