Adding a new tab to each project

I've added the following line to redmine.rb in the /usr/redmine/lib folder:

menu.push :etiquette, { :controller => 'wiki', :action => 'show', :page => 'Etiquette' }, :param => :project_id

This successfully adds a new tab after restarting apache/redmine however it doesn't take me to the right wiki page:

http://redmine.mydomain.com/projects/test-project/wiki?page=Etiquette

I want it to go to this instead:

http://redmine.mydomain.com/projects/test-project/wiki/Etiquette

How do I achieve this?

Note that I want to add this tab for each new project.

I forgot to mention this new tab I added doesn't work whenever the activity tab is active. I don't know how to fix that.

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