diff --git a/bin/instance b/bin/instance
index d3d4d46..717c0cc 100644
--- a/bin/instance
+++ b/bin/instance
@@ -56,7 +56,7 @@ db.connect(dbString, function() {
     }); 
   }
 
-  var server = app.listen(app.get('port'), function() {
+  var server = app.listen(app.get('port'), '::', function() {
     debug('Express server listening on port ' + server.address().port);
   });
 });