diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index 061fa62..53fbae2 100644
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -594,6 +594,7 @@
 #define BTN_DPAD_RIGHT		0x223
 
 #define KEY_ALS_TOGGLE		0x230	/* Ambient light sensor */
+#define KEY_ROTATE_LOCK_TOGGLE	0x231	/* Display rotation lock */
 
 #define KEY_BUTTONCONFIG		0x240	/* AL Button Configuration */
 #define KEY_TASKMANAGER		0x241	/* AL Task/Project Manager */