diff --git a/coregrind/m_syswrap/syswrap-arm64-linux.c b/coregrind/m_syswrap/syswrap-arm64-linux.c
index dcfd0769a..831b160b3 100644
--- a/coregrind/m_syswrap/syswrap-arm64-linux.c
+++ b/coregrind/m_syswrap/syswrap-arm64-linux.c
@@ -875,7 +875,7 @@ static SyscallTableEntry syscall_main_table[] = {
    GENXY(__NR_wait4,             sys_wait4),             // 260
    LINXY(__NR_prlimit64,         sys_prlimit64),         // 261
    LINXY(__NR_fanotify_init,     sys_fanotify_init),     // 262
-   //   (__NR_fanotify_mark,     sys_fanotify_mark),     // 263
+   LINX_(__NR_fanotify_mark,     sys_fanotify_mark),     // 263
    LINXY(__NR_name_to_handle_at, sys_name_to_handle_at), // 264
    LINXY(__NR_open_by_handle_at, sys_open_by_handle_at), // 265
    //   (__NR_clock_adjtime,     sys_clock_adjtime),     // 266