WSE client project keeps reverting WebServicesClientProtocol to SoapHttpClientProtocol

<configuration>
  <system.web>
    <webServices>
      <soapExtensionImporterTypes>
        <add type="Microsoft.Web.Services3.Description.WseExtensionImporter,
           Microsoft.Web.Services3, Version=3.0.0.0, Culture=neutral,
           PublicKeyToken=31bf3856ad364e35" />
      </soapExtensionImporterTypes>
    </webServices>
  </system.web>
</configuration>