diff --git a/lib/bridgeSetupSession.js b/lib/bridgeSetupSession.js
index 8d140d9..9f707ab 100644
--- a/lib/bridgeSetupSession.js
+++ b/lib/bridgeSetupSession.js
@@ -178,7 +178,7 @@ BridgeSetupSession.prototype.handleManageAccessory = function(request) {
 BridgeSetupSession.prototype.sendResponse = function(response) {
   if (this.validSession) {
     var serializedReponse = JSON.stringify(response);
-    var respData = Buffer(serializedReponse).toString('base64');
+    var respData = new Buffer(serializedReponse).toString('base64');
     this.lastResponse = respData;
     setTimeout(function() {
       this.controlChar.setValue(respData);