diff --git a/tools/perf/trace/beauty/include/uapi/linux/fcntl.h b/tools/perf/trace/beauty/include/uapi/linux/fcntl.h
index aadfbf6e0cb3..e43e3de3e9ee 100644
--- a/tools/perf/trace/beauty/include/uapi/linux/fcntl.h
+++ b/tools/perf/trace/beauty/include/uapi/linux/fcntl.h
@@ -124,6 +124,7 @@ struct delegation {
 
 #define FD_PIDFS_ROOT			-10002 /* Root of the pidfs filesystem */
 #define FD_NSFS_ROOT			-10003 /* Root of the nsfs filesystem */
+#define FD_FAILFS_ROOT			-10004 /* Root of the failfs filesystem */
 #define FD_INVALID			-10009 /* Invalid file descriptor: -10000 - EBADF = -10009 */
 
 /* Generic flags for the *at(2) family of syscalls. */