diff --git a/libc/kernel/uapi/linux/can/bcm.h b/libc/kernel/uapi/linux/can/bcm.h
index 0a86166..0d99ecc 100644
--- a/libc/kernel/uapi/linux/can/bcm.h
+++ b/libc/kernel/uapi/linux/can/bcm.h
@@ -68,4 +68,6 @@
 /* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */
 #define TX_RESET_MULTI_IDX 0x0200
 #define RX_RTR_FRAME 0x0400
+#define CAN_FD_FRAME 0x0800
 #endif
+/* WARNING: DO NOT EDIT, AUTO-GENERATED CODE - SEE TOP FOR INSTRUCTIONS */