diff --git a/test/racknga-test-utils.rb b/test/racknga-test-utils.rb
index 09b667f..97c7fa0 100644
--- a/test/racknga-test-utils.rb
+++ b/test/racknga-test-utils.rb
@@ -22,11 +22,6 @@
 require 'racknga/middleware/cache'
 require 'racknga/middleware/instance_name'
 
-Capybara.configure do |config|
-  config.default_driver = nil
-  config.current_driver = nil
-end
-
 module RackngaTestUtils
   include Capybara::DSL