diff --git a/lib/rb/spec/spec_helper.rb b/lib/rb/spec/spec_helper.rb
index c04141a..ccb1adf 100644
--- a/lib/rb/spec/spec_helper.rb
+++ b/lib/rb/spec/spec_helper.rb
@@ -42,7 +42,7 @@
   end
 end
 
-$:.unshift File.join(File.dirname(__FILE__), *%w[.. debug_proto_test gen-rb])
+$:.unshift File.join(File.dirname(__FILE__), *%w[.. test debug_proto gen-rb])
 require "srv"
 require "debug_proto_test_constants"