diff --git a/test/rb/test_helper.rb b/test/rb/test_helper.rb
index 9294c8f..125f52f 100644
--- a/test/rb/test_helper.rb
+++ b/test/rb/test_helper.rb
@@ -1,4 +1,4 @@
-$:.push File.dirname(__FILE__) + '/gen-rb'
-$:.push File.join(File.dirname(__FILE__), '../../lib/rb/lib')
+$:.unshift File.dirname(__FILE__) + '/gen-rb'
+$:.unshift File.join(File.dirname(__FILE__), '../../lib/rb/lib')
 
 require 'test/unit'