Deploying to Production server using XMLA file without a Password

I have generated an XMLA for our Production server using the Deployment Wizard.

The problem I have is that the Prod server's Cube is using a specific account (as the XMLA excerpt below shows). This is causing theProcessDefault to fail because the ALTER script (i.e. the XMLA) is overwiting the account's password (effectively unsetting it). So, when SSAS gets to the processing section, it fails and rolls back the entire ALTER (because it is done as single transaction).

Is there a way to overcome this problem?

          <DataSourcexsi:type="RelationalDataSource">

            <ID>DW</ID>

            <Name>DW</Name>

            <ConnectionString>Provider=SQLNCLI10.1;...</ConnectionString>

            <ImpersonationInfo>

              <ImpersonationMode>ImpersonateAccount</ImpersonationMode>

              <Account>dom\svccube</Account>

            </ImpersonationInfo>

and

    <Process>

      <Type>ProcessDefault</Type>

      <Object>

        <DatabaseID>DW</DatabaseID>

      </Object>

    </Process>

Amir