diff --git a/railties/guides/source/debugging_rails_applications.textile b/railties/guides/source/debugging_rails_applications.textile
index 35069f33adab..8eb81f3b130f 100644
--- a/railties/guides/source/debugging_rails_applications.textile
+++ b/railties/guides/source/debugging_rails_applications.textile
@@ -225,6 +225,8 @@ The debugger used by Rails, +ruby-debug+, comes as a gem. To install it, just ru
 $ sudo gem install ruby-debug
 </shell>
 
+TIP: If you are using Ruby 1.9, you can install a compatible version of +ruby-debug+ by running +sudo gem install ruby-debug19+
+
 In case you want to download a particular version or get the source code, refer to the "project's page on rubyforge":http://rubyforge.org/projects/ruby-debug/.
 
 Rails has had built-in support for ruby-debug since Rails 2.0. Inside any Rails application you can invoke the debugger by calling the +debugger+ method.