diff --git a/lib/getPort.js b/lib/getPort.js
index c9b77ee..b91dab0 100644
--- a/lib/getPort.js
+++ b/lib/getPort.js
@@ -1,6 +1,6 @@
 var portrange = 40000;
- 
-module.exports = function(cb) {
+
+function getPort(cb) {
     var port = portrange;
     ++portrange;
  
@@ -14,4 +14,6 @@ module.exports = function(cb) {
     server.on('error', function (err) {
         getPort(cb);
     });
-};
\ No newline at end of file
+};
+
+module.exports = getPort;
\ No newline at end of file