diff --git a/lib/common-node.js b/lib/common-node.js
index 55ef8eb..8c18f1c 100644
--- a/lib/common-node.js
+++ b/lib/common-node.js
@@ -66,13 +66,10 @@ exports.querystringParse = function (q) {
  * @return {string}
  */
 exports.querystringStringify = function (obj) {
-  var saved = querystring.escape
-  querystring.escape = escape // global
-  var ret = querystring.stringify(obj)
+  var ret = querystring.stringify(obj, { encodeURIComponent: escape })
   ret = ret.replace(/[@*/+]/g, function (char) {
     // `escape` doesn't encode the characters @*/+ so we do it manually
     return '%' + char.charCodeAt(0).toString(16).toUpperCase()
   })
-  querystring.escape = saved
   return ret
 }