uninitialized constant Wrong::Date

[Phlip]

I installed wrong to win an argument (and I won), but I couldn't run it...

$ ruby2.5 test_me.rb 
Traceback (most recent call last):
	11: from test_me.rb:2:in `<main>'
	10: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:39:in `require'
	 9: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:135:in `rescue in require'
	 8: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:135:in `require'
	 7: from /var/lib/gems/2.5.0/gems/wrong-0.7.1/lib/wrong.rb:6:in `<top (required)>'
	 6: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
	 5: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
	 4: from /var/lib/gems/2.5.0/gems/wrong-0.7.1/lib/wrong/helpers.rb:5:in `<top (required)>'
	 3: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
	 2: from /usr/lib/ruby/2.5.0/rubygems/core_ext/kernel_require.rb:59:in `require'
	 1: from /var/lib/gems/2.5.0/gems/wrong-0.7.1/lib/wrong/close_to.rb:1:in `<top (required)>'
/var/lib/gems/2.5.0/gems/wrong-0.7.1/lib/wrong/close_to.rb:12:in `<module:Wrong>': uninitialized constant Wrong::Date (NameError)
Did you mean?  Data

ruby 2.5.5p157 on Raspbian and ruby 2.5.1p57 on Ubuntu both have the same problem.