diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index 02a9c73..a1974f7 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,5 +1,5 @@
 require 'simplecov'
-SimpleCov.start
+SimpleCov.start 'rails'
 
 require 'rspec'
 require 'rails'