diff --git a/config.ru b/config.ru
index 988dac89..a0123600 100644
--- a/config.ru
+++ b/config.ru
@@ -1,4 +1,5 @@
 # This file is used by Rack-based servers to start the application.
 
 require ::File.expand_path('../config/environment',  __FILE__)
+use Rack::Deflater
 run Osem::Application