Routing error

gistfile1.txt

I'm using the active_admin_associations gem to get this route, so the definition in routes.rb of the Gem is not that standard:
    
if Rails.application.config.aa_associations.autocomplete_models
  models = Rails.application.config.aa_associations.autocomplete_models.join('|')
  Rails.application.routes.draw do
    match '/autocomplete/:model' => 'autocomplete#index', :model => /(#{models})/,
      :defaults => { :format => 'json' }
  end
end


This is activated with the following configuration option in config/application.rb
config.aa_associations.autocomplete_models = %w(ole_core_distributor ole_core_account)

Since this is in config, I, of course, restarted the server before trying to get to the URL.

This generates the following in rake routes:
/autocomplete/:model(.:format)                        autocomplete#index {:model=>/(ole_core_distributor)/, :format=>"json"}


And the routing error:
Started GET "/autocomplete/ole_core_distributor" for 127.0.0.1 at 2013-03-05 17:57:14 -0600
Processing by ApplicationController#routing_error as HTML
  Parameters: {"path"=>"autocomplete/ole_core_distributor"}