Exact match in capybara

Exact match in capybara

I'm having a problem with Capybara 2.1 to match exact text.
I have a select form looking like this one :
<select class='tags-select'>
<option>Tag 1</options>
<option>Tag 2</options>
</select>
My test should select Tag 2
page.find('.tags-select', :text => 'Tag 2').click
Otherwise that keeps selecting Tag 1 even with this Capybara config in my
helper :
Capybara.configure do |config|
config.match = :prefer_exact
config.exact = true
config.exact_options = true
config.ignore_hidden_elements = true
config.visible_text_only = true
config.default_wait_time = 10
end
I know that I can use some regex here to avoid the problem, but I want to
understand what I'm doing wrong with that test.