```ruby
class Handbrake < Cask
  url 'http://handbrake.fr/rotation.php?file=HandBrake-0.9.9-MacOSX.6_GUI_x86_64.dmg'
  homepage 'http://handbrake.fr/'
  version '0.9.9'
  sha1 '9b6f0259f3378b0cc136378d7859162aa95c0eb7'
  link :app, 'HandBrake.app'
end
```

Remove :app designation from HandBrake link
user
```ruby
class Handbrake < Cask
  url 'http://handbrake.fr/rotation.php?file=HandBrake-0.9.9-MacOSX.6_GUI_x86_64.dmg'
  homepage 'http://handbrake.fr/'
  version '0.9.9'
  sha1 '9b6f0259f3378b0cc136378d7859162aa95c0eb7'
  link 'HandBrake.app'
end
```
assistant