diff --git a/lib/rack/reverse_proxy.rb b/lib/rack/reverse_proxy.rb
index ddadd3f..2b5c5d2 100644
--- a/lib/rack/reverse_proxy.rb
+++ b/lib/rack/reverse_proxy.rb
@@ -26,7 +26,7 @@ def call(env)
       headers['HOST'] = uri.host if all_opts[:preserve_host]
       headers['X-Forwarded-Host'] = rackreq.host if all_opts[:x_forwarded_host]
 
-      session = Net::HTTP.new(uri.host, uri.port)
+      session = Net::HTTP.new(uri.host, uri.port, all_opts[:proxy_address], all_opts[:proxy_port])
       session.read_timeout=all_opts[:timeout] if all_opts[:timeout]
 
       session.use_ssl = (uri.scheme == 'https')