```ruby
require 'sinatra'
require 'rdf/portal/extensions'

module RDF
  module Portal
    autoload :VERSION,        'rdf/portal/version'
    autoload :DISTILLER_HAML, 'rdf/portal/rdfa_template'
    autoload :Application,    'rdf/portal/application'
  end
end
```

Move extension include to application.
user
```ruby
require 'sinatra'

module RDF
  module Portal
    autoload :VERSION,        'rdf/portal/version'
    autoload :DISTILLER_HAML, 'rdf/portal/rdfa_template'
    autoload :Application,    'rdf/portal/application'
  end
end
```
assistant