diff --git a/fs/notify/fanotify/fanotify_user.c b/fs/notify/fanotify/fanotify_user.c
index 67c0b5e..55d6e37 100644
--- a/fs/notify/fanotify/fanotify_user.c
+++ b/fs/notify/fanotify/fanotify_user.c
@@ -70,3 +70,9 @@
 	fsnotify_put_group(group);
 	return fd;
 }
+
+SYSCALL_DEFINE5(fanotify_mark, int, fanotify_fd, unsigned int, flags,
+		__u64, mask, int, dfd, const char  __user *, pathname)
+{
+	return -ENOSYS;
+}