How do I let a wrapper cookbook use its parent's template in a definition?

I'm working with the apache2 vendor cookbook, and my own app-cookbook. In my recipe, I want to use the web_app definition for a site and have it use the template defined in the vendor cookbook #my-apache2/recipes/my-site.rb web_app "my-site" do #template not specified here, so it should use default server_name "my-site.com" docroot "#{app_dir}/public" end Which results in Error executing action `c