diff --git a/test/Microsoft.AspNetCore.SignalR.Client.Tests/HubConnectionTests.Helpers.cs b/test/Microsoft.AspNetCore.SignalR.Client.Tests/HubConnectionTests.Helpers.cs
index 8ec7a17abf..dfc6a703bd 100644
--- a/test/Microsoft.AspNetCore.SignalR.Client.Tests/HubConnectionTests.Helpers.cs
+++ b/test/Microsoft.AspNetCore.SignalR.Client.Tests/HubConnectionTests.Helpers.cs
@@ -1,3 +1,6 @@
+// Copyright (c) .NET Foundation. All rights reserved.
+// Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
+
 using Microsoft.AspNetCore.SignalR.Protocol;
 
 namespace Microsoft.AspNetCore.SignalR.Client.Tests