diff --git a/lib/server-impl.js b/lib/server-impl.js
index 20e8f3f8ea..9b1a1d80ca 100644
--- a/lib/server-impl.js
+++ b/lib/server-impl.js
@@ -29,10 +29,13 @@ function createApp(options) {
     startMonitoring(options.serverMetrics, eventBus);
 
     return new Promise(resolve => {
-        const server = app.listen(app.get('port'), options.host, () => {
-            logger.info(`Unleash started on port ${server.address().port}`);
-            resolve({ app, server, eventBus });
-        });
+        const server = app.listen(
+            { port: options.port, host: options.host },
+            () => {
+                logger.info(`Unleash started on port ${server.address().port}`);
+                resolve({ app, server, eventBus });
+            }
+        );
     });
 }