Wiki Organization - Sub Wikis appear on same page

I am working on an intranet wiki that is organized by various clients. Each client wiki is organized into the same set of sub wikis (the sub wikis all share the same titles). The wiki structure looks like this:

Client 1 > Sub Wiki 1, Sub Wiki 2, Sub Wiki 3
Client 2 > Sub Wiki 1, Sub Wiki 2, Sub Wiki 3
Client 3 > Sub Wiki 1, Sub Wiki 2, Sub Wiki 3

When you click "Sub Wiki 1" under Client 1, it displays all of the sub wikis from each client on one page - like this:

Sub Wiki 1 (Client 1), Sub Wiki 1 (Client 2), Sub Wiki 1 (Client 3)

Is there a way to prevent all of the sub wikis from showing up on the same page?