diff --git a/src/HotChocolate/AspNetCore/src/AspNetCore/Subscriptions/OperationSession.cs b/src/HotChocolate/AspNetCore/src/AspNetCore/Subscriptions/OperationSession.cs
index b421740a3cf..6bc08aa6582 100644
--- a/src/HotChocolate/AspNetCore/src/AspNetCore/Subscriptions/OperationSession.cs
+++ b/src/HotChocolate/AspNetCore/src/AspNetCore/Subscriptions/OperationSession.cs
@@ -74,7 +74,8 @@ await _session.Protocol.SendErrorMessageAsync(
                     {
                         try
                         {
-                            await SendResultMessageAsync(item, ct);
+                            // use original cancellation token here to keep the websocket open for other streams.
+                            await SendResultMessageAsync(item, cancellationToken);
                         }
                         finally
                         {