1 files changed, 2 insertions, 1 deletions
diff --git a/deps/npm/node_modules/npm-registry-client/lib/adduser.js b/deps/npm/node_modules/npm-registry-client/lib/adduser.js
index a6a779d8ca..fd6f5302ae 100644
--- a/deps/npm/node_modules/npm-registry-client/lib/adduser.js
+++ b/deps/npm/node_modules/npm-registry-client/lib/adduser.js
@@ -2,6 +2,7 @@ module.exports = adduser
 
 var url = require('url')
 var assert = require('assert')
+var extend = Object.assign || require('util')._extend
 
 function adduser (uri, params, cb) {
   assert(typeof uri === 'string', 'must pass registry URI to adduser')
@@ -67,7 +68,7 @@ function adduser (uri, params, cb) {
   }
   this.request(
     uri,
-    options,
+    extend({}, options),
     function (error, data, json, response) {
       if (!error || !response || response.statusCode !== 409) {
         return cb(error, data, json, response)