diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index c33b55d..a578fab 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -1,4 +1,5 @@
 require "rubygems"
+require "test/unit"
 require "spec"
 
 # gem install redgreen for colored test output