New latch for 82-265 Mortise Lock

The lock for my sliding door broke so I ordered a new one from Swisco, item# 82-265. The lock fit the door and functions properly, but my existing latch doesn't fit the lock and the lock will need stay attached to the latch and comes loose if you put any pressure on the door at all. Can you provide a latch to attach to the door frame for the 82-265 Multi-Point Mortise lock, 11"?