diff --git a/libc/kernel/uapi/linux/serio.h b/libc/kernel/uapi/linux/serio.h
index 7afb1a2..a8fcfd9 100644
--- a/libc/kernel/uapi/linux/serio.h
+++ b/libc/kernel/uapi/linux/serio.h
@@ -84,5 +84,6 @@
 #define SERIO_HAMPSHIRE 0x3b
 #define SERIO_PS2MULT 0x3c
 #define SERIO_TSC40 0x3d
-#endif
+#define SERIO_WACOM_IV 0x3e
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
+#endif