A new release 2.13.2 of RMagick is now available on github as well as rubygems. This release will fix the installation issues due to ruby 1.9.3 and ImageMagick 6.8+. You can install it the usual way with bundle by adding to Gemfile: gem 'rmagick', '2.13.2' or if you want to be on edge: gem 'rmagick', '2.13.2', :git=>'http://github.com/rmagick/rmagick.git' You also install it directly by doing: gem install rmagick - Moncef Maiza.