diff --git a/api.go b/api.go
index 3b74b0b..ebea568 100644
--- a/api.go
+++ b/api.go
@@ -60,8 +60,9 @@ func main() {
 	r.Handle("/sessions/{sessionId}/ws/", server)
 
 	// Reverse proxy
-	r.Host(`{node}-{port:[0-9]*}.play-with-docker.com`).Handler(handlers.NewMultipleHostReverseProxy())
-	r.Host(`{node}.play-with-docker.com`).Handler(handlers.NewMultipleHostReverseProxy())
+	proxyHandler := handlers.NewMultipleHostReverseProxy()
+	r.Host(`{node}-{port:[0-9]*}.play-with-docker.com`).Handler(proxyHandler)
+	r.Host(`{node}.play-with-docker.com`).Handler(proxyHandler)
 
 	n := negroni.Classic()
 	n.UseHandler(r)