Start Menu Page Dafault Folder

Wenen I run my installer the Start Menu Folder Default folder appears as only my product name. I want to add product version as well. I have entered followin line in the installer but default folder still apears as only product name. Any help in this matter ?

!define MUI_STARTMENUPAGE_DEFAULTFOLDER "${MUI_PRODUCT} ${MUI_VERSION}"

It's hard to say without the entire script. Mind attaching it?