diff --git a/config.ru b/config.ru
index b23e135..96dbf56 100644
--- a/config.ru
+++ b/config.ru
@@ -5,6 +5,5 @@ use Rack::Rewrite do
   rewrite "/", "/index.html"
 end
 
-use Rack::ETag
 use Rack::Static, :urls => %w(/), :root => "public"
 run Rack::Directory.new("public")