Have used the JewelryBox ruby gem to set up rvm and download, manage Ruby 1.9.3

Then went into TextMate prefs to set up shell variable and path to Ruby 1.9.3 at /usr/local/rvm/bin/textmate_ruby then added "puts RUBY_VERSION" at top of file. 

But when I run the file, the output is 1.8.7, which is the system version of Ruby. 

Any idea how to fix this situation?

Thank you.