Yeah I was going to suggest the same.

On Thu, Jul 18, 2013 at 12:13 AM, Dan Kubb <notifications@github.com>
wrote:

>> +    # @example
>> +    #
>> +    #   class User
>> +    #     include Virtus
>> +    #
>> +    #     attribute :age,  Integer, default: 21
>> +    #   end
>> +    #
>> +    #   user = User.new(:name => 'John', :age => 28)
>> +    #   user.age = 30
>> +    #   user.age # => 30
>> +    #   user.set_default(:age)
>> +    #   user.age # => 21
>> +    #
>> +    # @api public
>> +    def set_default(attribute_name)
> I would probably rename this as `#reset_attribute`. I hesitate to suggest `#reset`, because someone could see the method and thing it resets the whole object, not just the provided attribute.
> @solnic wdyt?
> ---
> Reply to this email directly or view it on GitHub:
> https://github.com/solnic/virtus/pull/182/files#r5256114