diff --git a/man2/open.2 b/man2/open.2
index 806222551..af8120cfa 100644
--- a/man2/open.2
+++ b/man2/open.2
@@ -1642,6 +1642,7 @@ a directory file descriptor argument
 .BR linkat (2),
 .BR mkdirat (2),
 .BR mknodat (2),
+.BR mount_setattr (2),
 .BR move_mount (2),
 .BR name_to_handle_at (2),
 .BR open_tree (2),