diff --git a/Gemfile b/Gemfile
index 21e1b16..4bb5c66 100644
--- a/Gemfile
+++ b/Gemfile
@@ -4,4 +4,5 @@ group :development, :test do
   gem 'jeweler'
   gem 'shoulda'
   gem 'simplecov'
+  gem 'coveralls', :require => false
 end
diff --git a/test/test_helper.rb b/test/test_helper.rb
index 2ccc485..d654f93 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -8,6 +8,14 @@
 require 'simplecov'
 SimpleCov.start
 
+begin
+  # Coveralls is marked as an _optional_ dependency, so don't
+  # throw a fit if it's not there.
+  require 'coveralls'
+  Coveralls.wear!
+rescue LoadError
+end
+
 require 'rantly'
 
 class Test::Unit::TestCase