diff --git a/test/test_helper.rb b/test/test_helper.rb
index 9f39481f..a5a63ff2 100644
--- a/test/test_helper.rb
+++ b/test/test_helper.rb
@@ -31,6 +31,7 @@ def explain_normalized?
 
 Combustion.path = "test/internal"
 Combustion.initialize! :active_record, :action_controller do
+  config.load_defaults Rails::VERSION::STRING.to_f
   config.action_controller.logger = logger
   config.active_record.logger = logger
 end