diff --git a/openwire-dotnet/src/OpenWire.Client/MessageConsumer.cs b/openwire-dotnet/src/OpenWire.Client/MessageConsumer.cs
index 59620acb67..5e505a061e 100755
--- a/openwire-dotnet/src/OpenWire.Client/MessageConsumer.cs
+++ b/openwire-dotnet/src/OpenWire.Client/MessageConsumer.cs
@@ -163,7 +163,7 @@ namespace OpenWire.Client
             return message;
         }
         
-        protected void DoClientAcknowledge(Message message)
+        protected void DoClientAcknowledge(ActiveMQMessage message)
         {
             if (acknowledgementMode == AcknowledgementMode.ClientAcknowledge)
             {