diff --git a/lib/jsonrpc.js b/lib/jsonrpc.js
index 7b680dd..710d7cd 100644
--- a/lib/jsonrpc.js
+++ b/lib/jsonrpc.js
@@ -51,8 +51,8 @@ Client.prototype.call = function(method, params, callback, errback, path) {
   }
 
   // use HTTP auth if user and password set
-  if (this.opts.user && this.opts.pass) {
-    requestOptions.auth = this.opts.user + ':' + this.opts.pass;
+  if (this.opts.username && this.opts.password) {
+    requestOptions.auth = this.opts.username + ':' + this.opts.password;
   }
 
   // Now we'll make a request to the server