diff --git a/config.ru b/config.ru
new file mode 100644
index 00000000..b4ae79a9
--- /dev/null
+++ b/config.ru
@@ -0,0 +1,9 @@
+# encoding: utf-8
+
+require_relative './app'
+
+configure :development do
+  Sinatra::Application.reset!
+  use Rack::Reloader
+end
+run LedgerRbApp