diff --git a/app/lib/sync.js b/app/lib/sync.js
index 6f550eb2e99bfd7a28525ee9943b2e89983384f9..78f17efb40e88f186ca166f55c32d73820e1e8ac 100644
--- a/app/lib/sync.js
+++ b/app/lib/sync.js
@@ -249,7 +249,7 @@ function Synchroniser (server, host, port, conf, interactive) {
   };
 
   function getVucoin(theHost, thePort, options) {
-    return Promise(function(resolve, reject){
+    return new Promise(function(resolve, reject){
       vucoin(theHost, thePort, function (err, node) {
         if(err){
           return reject('Cannot sync: ' + err);