Schema reference in Webmethods generated SOAP documents

We are working on a SOAP-based B2B integration project, where we generate SOAP messages using createSOAPData and addBody
webMethods Internal Server 6.0.1 generates SOAP messages which reference the following schema:
What configuration should I do to change this reference to:
[url=“XML Schema”][/url]

Andi Giri
B2B Solutions Architect
BCE Emergis