diff --git a/src/Microsoft.AspNetCore.SignalR.Client.Core/HubException.cs b/src/Microsoft.AspNetCore.SignalR.Common/HubException.cs
similarity index 72%
rename from src/Microsoft.AspNetCore.SignalR.Client.Core/HubException.cs
rename to src/Microsoft.AspNetCore.SignalR.Common/HubException.cs
index b2a9667ea2..62759e05a5 100644
--- a/src/Microsoft.AspNetCore.SignalR.Client.Core/HubException.cs
+++ b/src/Microsoft.AspNetCore.SignalR.Common/HubException.cs
@@ -2,8 +2,9 @@
 // Licensed under the Apache License, Version 2.0. See License.txt in the project root for license information.
 
 using System;
+using System.Runtime.Serialization;
 
-namespace Microsoft.AspNetCore.SignalR.Client
+namespace Microsoft.AspNetCore.SignalR
 {
     [Serializable]
     public class HubException : Exception
@@ -19,5 +20,9 @@ namespace Microsoft.AspNetCore.SignalR.Client
         public HubException(string message, Exception innerException) : base(message, innerException)
         {
         }
+
+        public HubException(SerializationInfo info, StreamingContext context) : base(info, context)
+        {
+        }
     }
 }