diff --git a/Gemfile b/Gemfile
index 6ca1d0b0..9d218963 100644
--- a/Gemfile
+++ b/Gemfile
@@ -35,6 +35,10 @@ group :development do
   gem 'mongrel_experimental'
 end
 
+group :test, :development do
+  gem "ruby-debug"
+end
+
 group :test do
   gem 'rspec-rails', '2.0.0.beta.11'
   gem 'factory_girl_rails'