diff --git a/test/memoizable_test.rb b/test/memoizable_test.rb
index 02747e0..1efab22 100644
--- a/test/memoizable_test.rb
+++ b/test/memoizable_test.rb
@@ -1,4 +1,5 @@
-require 'abstract_unit'
+require 'test_helper'
+require 'memoizable'
 
 class MemoizableTest < ActiveSupport::TestCase
   class Person
diff --git a/test/test_helper.rb b/test/test_helper.rb
new file mode 100644
index 0000000..7069589
--- /dev/null
+++ b/test/test_helper.rb
@@ -0,0 +1,5 @@
+require 'rubygems'
+require 'test/unit'
+require 'active_support'
+
+$:.unshift File.expand_path(File.dirname(__FILE__)+"/../lib")