TypeError: no implicit conversion of Symbol into String

[thehydroimpulse]

Getting this error when calling:

chef_role :web, 'roles:web'

Within my production.rb file.

Full stack trace:

cap aborted!
TypeError: no implicit conversion of Symbol into String
/Users/daniel/.rvm/gems/ruby-2.1.1/gems/capistrano-chef-1.0.0/lib/capistrano/dsl/chef.rb:5:in `delete'
/Users/daniel/.rvm/gems/ruby-2.1.1/gems/capistrano-chef-1.0.0/lib/capistrano/dsl/chef.rb:5:in `chef_role'
config/deploy/production.rb:3:in `<top (required)>'
/Users/daniel/.rvm/gems/ruby-2.1.1/gems/capistrano-3.2.0/lib/capistrano/setup.rb:15:in `load'
/Users/daniel/.rvm/gems/ruby-2.1.1/gems/capistrano-3.2.0/lib/capistrano/setup.rb:15:in `block (2 levels) in <top (required)>'
/Users/daniel/.rvm/gems/ruby-2.1.1/gems/capistrano-3.2.0/lib/capistrano/application.rb:15:in `run'
/Users/daniel/.rvm/gems/ruby-2.1.1/gems/capistrano-3.2.0/bin/cap:3:in `<top (required)>'
/Users/daniel/.rvm/gems/ruby-

Using: gem 'capistrano-chef' within my Gemfile.

Rails: 4.1
Ruby: 2.1

Works when using an empty hash for the options argument.