[DOCS] Fixed bad link
Original commit: elastic/x-pack-elasticsearch@1538f37d63fde81c82e268c6b4e916bcd123d8a1
@@ -217,7 +217,7 @@ that is no longer valid after the command runs successfully. You cannot run the
the **Management > Users** UI in {kib} or use the security user API.
For more information, see
-{ref}/setting-up-authentication.html#set-built-in-user-passwords[Setting Built-in User Passwords].
+{xpack-ref}/setting-up-authentication.html#set-built-in-user-passwords[Setting Built-in User Passwords].
--
. {kibana-ref}/installing-xpack-kb.html[Install {xpack} on {kib}].
