Fix chunk that still uses GetParamValue

Created by: Lars Dalby

Imported comments:

By Lars Dalby on 2018-09-14T06:47:59.679Z

mentioned in commit a66af3e3

By Lars Dalby on 2018-09-14T06:47:59.546Z

closed via merge request !30

By Lars Dalby on 2018-08-30T09:09:38.574Z

mentioned in commit 53030a78