diff --git a/libc/kernel/uapi/asm-generic/unistd.h b/libc/kernel/uapi/asm-generic/unistd.h
index 1b85b30..efb5218 100644
--- a/libc/kernel/uapi/asm-generic/unistd.h
+++ b/libc/kernel/uapi/asm-generic/unistd.h
@@ -398,8 +398,9 @@
 #endif
 #define __NR_openat2 437
 #define __NR_pidfd_getfd 438
+#define __NR_faccessat2 439
 #undef __NR_syscalls
-#define __NR_syscalls 439
+#define __NR_syscalls 440
 #if __BITS_PER_LONG == 64 && !defined(__SYSCALL_COMPAT)
 #define __NR_fcntl __NR3264_fcntl
 #define __NR_statfs __NR3264_statfs