diff --git a/lib/net/upnp.js b/lib/net/upnp.js
index f187b42c..f435385d 100644
--- a/lib/net/upnp.js
+++ b/lib/net/upnp.js
@@ -697,12 +697,12 @@ function findError(el) {
  */
 
 function parseHost(uri) {
-  let data = url.parse(uri);
+  let {protocol, host} = url.parse(uri);
 
-  assert(data.protocol === 'http:' || data.protocol === 'https:',
+  assert(protocol === 'http:' || protocol === 'https:',
     'Bad URL for location.');
 
-  return `${data.protocol}//${data.host}`;
+  return `${protocol}//${host}`;
 }
 
 function prependHost(host, uri) {