diff --git a/include/uapi/linux/input-event-codes.h b/include/uapi/linux/input-event-codes.h
index ce945dc50..f46afc63f 100755
--- a/include/uapi/linux/input-event-codes.h
+++ b/include/uapi/linux/input-event-codes.h
@@ -605,6 +605,7 @@
 
 #define KEY_ALS_TOGGLE		0x230	/* Ambient light sensor */
 #define KEY_ROTATE_LOCK_TOGGLE	0x231	/* Display rotation lock */
+#define KEY_REFRESH_RATE_TOGGLE	0x232	/* Display refresh rate toggle */
 
 #define KEY_BUTTONCONFIG		0x240	/* AL Button Configuration */
 #define KEY_TASKMANAGER		0x241	/* AL Task/Project Manager */