How can I generate a valid WCF proxy for a service that has a period in the message types?

Question

I am interfacing with a web service I have no control over and it has messages (input/output) and actions that contain periods (.)

When svcutil generates the proxy, it includes:

[MessageContractAttribute(WrapperName="The.Request",...)]
public partial class TheRequest
{ ... }

[MessageContractAttribute(WrapperName="The.Response",...)]
public partial class TheResponse
{ ... }

which model the WSDL:

<wsdl:message name="The.Request">
    <wsdl:part name="Input" type="tns:InputType" />
</wsdl:message>
<wsdl:message name="The.Response">
    <wsdl:part name="Return" type="tns:Return" />
</wsdl:message>

When the code is run, I get an error message:

RPC Message TheRequest in operation DoIt has an invalid body name Input. It must be TheRequest

Stack Trace:

at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.EnsureMessageInfos() at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.EnsureMessageInfos() at System.ServiceModel.Description.XmlSerializerOperationBehavior.Reflector.OperationReflector.get_Request() at System.ServiceModel.Description.XmlSerializerOperationBehavior.CreateFormatter() at System.ServiceModel.Description.XmlSerializerOperationBehavior.System.ServiceModel.Description.IOperationBehavior.ApplyClientBehavior(OperationDescription description, ClientOperation proxy) at System.ServiceModel.Description.DispatcherBuilder.BindOperations(ContractDescription contract, ClientRuntime proxy, DispatchRuntime dispatch) at System.ServiceModel.Description.DispatcherBuilder.ApplyClientBehavior(ServiceEndpoint serviceEndpoint, ClientRuntime clientRuntime) at System.ServiceModel.Description.DispatcherBuilder.BuildProxyBehavior(ServiceEndpoint serviceEndpoint, BindingParameterCollection& parameters) at System.ServiceModel.Channels.ServiceChannelFactory.BuildChannelFactory(ServiceEndpoint serviceEndpoint, Boolean useActiveAutoClose) at System.ServiceModel.ChannelFactory.CreateFactory()

....

I can't find a way to change the validation to accept the message name.

Can anyone clue me in on what to do or, at least, point me in the right direction?

Thanks.