GUI Composer: How to use ti-widget-label with data from target?

I create a ti-widget-label, and linked the "label" to my program.  When running, it continues to show "Label Text" instead of the string from my binary.

In my program, I declare the string with:

const char version[]="0.2";

I then use "version" in the link field for the label in the widget.   But the "Label Text" does not change.

What is the correct way for doing this, or am I running into some other issue?

Thanks!