diff --git a/lib/capybara/spec/test_app.rb b/lib/capybara/spec/test_app.rb
index <HASH>..<HASH> 100644
--- a/lib/capybara/spec/test_app.rb
+++ b/lib/capybara/spec/test_app.rb
@@ -101,5 +101,5 @@ class TestApp < Sinatra::Base
 end
 
 if __FILE__ == $0
-  Rack::Handler::Mongrel.run TestApp, :Port => 8070
+  Rack::Handler::WEBrick.run TestApp, :Port => 8070
 end
Testapps self contained running uses WEBrick

There's really no point in using Mongrel