error when name nil given to queue

[MarieS1415]

Hello,
I was using the following line:
queue = channel.queue(ENV['branch_name'], durable: true, auto_delete: false)
while the environment variable was not defined.
It triggered the following error:
/gems/bunny-2.12.0/lib/bunny/queue.rb:383:in add_default_options': undefined method empty?' for nil:NilClass (NoMethodError)
And indeed this line of code seems to correspond to the queue name.