diff --git a/test/Microsoft.AspNetCore.SignalR.Tests/HubEndpointTests.cs b/test/Microsoft.AspNetCore.SignalR.Tests/HubEndpointTests.cs
index f120f60d1f..02972620c1 100644
--- a/test/Microsoft.AspNetCore.SignalR.Tests/HubEndpointTests.cs
+++ b/test/Microsoft.AspNetCore.SignalR.Tests/HubEndpointTests.cs
@@ -1538,10 +1538,10 @@ namespace Microsoft.AspNetCore.SignalR.Tests
             {
                 return Clients.Client(connectionId).Send(message);
             }
-            public Task DelayedSend(string connectionId, string message)
+            public async Task DelayedSend(string connectionId, string message)
             {
-                Task.Delay(100);
-                return Clients.Client(connectionId).Send(message);
+                await Task.Delay(100);
+                await Clients.Client(connectionId).Send(message);
             }
             public Task GroupAddMethod(string groupName)
             {