The method_option as shown below works expectedly: ``` ruby method_option :force, :type => :boolean, :default => false, :aliases => "-f", :desc => "forcely replace" ``` When using format below, it does not work ``` ruby method_option :force => false, :aliases => "-f", :desc => "forcely replace" ``` If the code is wrong, the sample on the document below should be written in more detail. - https://github.com/rails/thor/wiki/Method-Options Thanks!