Cannot load such file -- highline/import (LoadError)

[K4IdO]

kali@kali:~/Drupalgeddon2$ ruby drupalgeddon2.rb http://10.10.10.233
Traceback (most recent call last):
2: from drupalgeddon2.rb:16:in <main>' 1: from /usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb:85:in require'
/usr/lib/ruby/vendor_ruby/rubygems/core_ext/kernel_require.rb:85:in `require': cannot load such file -- highline/import (LoadError)