How to serialize a property of type XMLNode

I have a public class with a property like:

[serializable]
public class Data
{
Public XmlNode VariableXMLData {get; set;}
}

The VariableXMLData node inturn contains an xmlnode. For example, say:

VariableXMLData.OuterXML is "
<VariableXMLData>
<Change>Major</Change><Reason>Unknown</Reason>
</VariableXMLData> ". 

Issue is: When i serialize this class, the output looks like:

<Data>
<VariableXMLData>
<VariableXMLData>
<Change>Major</Change><Reason>Unknown</Reason>
</VariableXMLData>
</VariableXMLData>
</Data> 

How can i avoid multiple tags for the element name over here. I want to have just one node for