diff --git a/README b/README
index c5f355c1..cddf66bc 100644
--- a/README
+++ b/README
@@ -18,7 +18,7 @@ As of Rails 3 ExceptionNotifier is used as a rack middleware
   Whatever::Application.config.middleware.use ExceptionNotifier,
     :email_prefix => "[Whatever] ",
     :sender_address => %{"notifier" <notifier@example.com>},
-    :exception_recipients => %w{exceptions@example.com}
+    :exception_recipients => %w{exceptions@example.com} if Rails.env.production?
 
 == Customization