diff --git a/Microsoft.Azure.Amqp/Amqp/Sasl/SaslTransport.cs b/Microsoft.Azure.Amqp/Amqp/Sasl/SaslTransport.cs
index 3dbead4a..b0dba34b 100644
--- a/Microsoft.Azure.Amqp/Amqp/Sasl/SaslTransport.cs
+++ b/Microsoft.Azure.Amqp/Amqp/Sasl/SaslTransport.cs
@@ -7,9 +7,9 @@ namespace Microsoft.Azure.Amqp.Sasl
     using System.Security.Principal;
     using Microsoft.Azure.Amqp.Transport;
 
-    public sealed class SaslTransport : TransportBase
+    public class SaslTransport : TransportBase
     {
-        readonly TransportBase innerTransport;
+        protected readonly TransportBase innerTransport;
         SaslNegotiator negotiator;
 
         public SaslTransport(TransportBase transport, SaslTransportProvider provider, bool isInitiator)
diff --git a/Microsoft.Azure.Amqp/Amqp/Sasl/SaslTransportProvider.cs b/Microsoft.Azure.Amqp/Amqp/Sasl/SaslTransportProvider.cs
index 346edbf5..643faa12 100644
--- a/Microsoft.Azure.Amqp/Amqp/Sasl/SaslTransportProvider.cs
+++ b/Microsoft.Azure.Amqp/Amqp/Sasl/SaslTransportProvider.cs
@@ -7,7 +7,7 @@ namespace Microsoft.Azure.Amqp.Sasl
     using System.Collections.Generic;
     using Microsoft.Azure.Amqp.Transport;
 
-    public sealed class SaslTransportProvider : TransportProvider
+    public class SaslTransportProvider : TransportProvider
     {
         Dictionary<string, SaslHandler> handlers;