diff --git a/libc/kernel/uapi/linux/serio.h b/libc/kernel/uapi/linux/serio.h
index a956d96..ddd45c4 100644
--- a/libc/kernel/uapi/linux/serio.h
+++ b/libc/kernel/uapi/linux/serio.h
@@ -87,4 +87,5 @@
 #define SERIO_WACOM_IV 0x3e
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define SERIO_EGALAX 0x3f
+#define SERIO_PULSE8_CEC 0x40
 #endif