diff --git a/include/uapi/linux/input.h b/include/uapi/linux/input.h
index 7bacdb514377..ecc88592ecbe 100644
--- a/include/uapi/linux/input.h
+++ b/include/uapi/linux/input.h
@@ -858,6 +858,7 @@ struct input_keymap_entry {
 #define SW_FRONT_PROXIMITY	0x0b  /* set = front proximity sensor active */
 #define SW_ROTATE_LOCK		0x0c  /* set = rotate locked/disabled */
 #define SW_LINEIN_INSERT	0x0d  /* set = inserted */
+#define SW_MUTE_DEVICE		0x0e  /* set = device disabled */
 #define SW_MAX			0x0f
 #define SW_CNT			(SW_MAX+1)