diff --git a/include/linux/input-event-codes.h b/include/linux/input-event-codes.h
index 86a5f86..901b271 100644
--- a/include/linux/input-event-codes.h
+++ b/include/linux/input-event-codes.h
@@ -406,6 +406,7 @@
 #define BTN_TOOL_MOUSE		0x146
 #define BTN_TOOL_LENS		0x147
 #define BTN_TOOL_QUINTTAP	0x148	/* Five fingers on trackpad */
+#define BTN_STYLUS3		0x149
 #define BTN_TOUCH		0x14a
 #define BTN_STYLUS		0x14b
 #define BTN_STYLUS2		0x14c