diff --git a/swarmlab-app/src/run/app.js b/swarmlab-app/src/run/app.js
index 366a756..cb40960 100755
--- a/swarmlab-app/src/run/app.js
+++ b/swarmlab-app/src/run/app.js
@@ -6,8 +6,7 @@ var http = require('http').Server(app);
 var https = require('https');
 var io = require('socket.io')(http);
 
-var mongodb = require('mongodb');
-    MongoClient = mongodb.MongoClient;
+const MongoClient = require('mongodb').MongoClient;
 
 //var chokidar = require("chokidar");
 //var logpath = "/var/lab/playground-serverlogs";