Fleck exception on server dispose

gistfile1.txt

using (var server = new WebSocketServer("ws://localhost:8181"))
{
    server.Start(connection => { });
}

24/01/2012 21:29:32 [Info] Server started at ws://localhost:8181
24/01/2012 21:29:32 [Error] Listener socket is closed System.AggregateException:
 One or more errors occurred. ---> System.ObjectDisposedException: Cannot access
 a disposed object.
Object name: 'System.Net.Sockets.Socket'.
   at System.Net.Sockets.Socket.EndAccept(IAsyncResult asyncResult)
   at Fleck.SocketWrapper.<Accept>b__c(IAsyncResult r)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar,
Func`2 endFunction, Action`1 endAction, Task`1 promise)
   --- End of inner exception stack trace ---
---> (Inner Exception #0) System.ObjectDisposedException: Cannot access a dispos
ed object.
Object name: 'System.Net.Sockets.Socket'.
   at System.Net.Sockets.Socket.EndAccept(IAsyncResult asyncResult)
   at Fleck.SocketWrapper.<Accept>b__c(IAsyncResult r)
   at System.Threading.Tasks.TaskFactory`1.FromAsyncCoreLogic(IAsyncResult iar,
Func`2 endFunction, Action`1 endAction, Task`1 promise)<---