LoadModule passenger_module /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.19/ext/apache2/mod_passenger.so

<IfModule passenger_module>

PassengerRoot /usr/local/lib/ruby/gems/1.8/gems/passenger-3.0.19
PassengerRuby /usr/local/bin/ruby18

</IfModule>