diff --git a/src/Downloader.DummyHttpServer/HttpServer.cs b/src/Downloader.DummyHttpServer/HttpServer.cs
index 9554381f..e2d73649 100644
--- a/src/Downloader.DummyHttpServer/HttpServer.cs
+++ b/src/Downloader.DummyHttpServer/HttpServer.cs
@@ -69,7 +69,7 @@ public static IWebHost CreateHostBuilder(int port)
 
         if (port > 0)
         {
-            host = host.UseUrls($"http://+:{port}");
+            host = host.UseUrls($"http://localhost:{port}");
         }
 
         return host.Build();