Altium unrouted net on NPTH pad to copper pour

[robotly]

In Altium, I have a non-plated through hole with a pad. The pad is assigned to net GND. I have a polygon pour defined as GND. When I pour the polygon, the pad has thermal connections to the pour, as expected, but when I run the DRC I get an "unrouted net" error associated with that pad.

I wanted the pad, connected to GND, I GOT the pad connected to GND, but Altium throws an error. Other than ignoring it, what's the way around this error?

[ajb]

If you edit the pad properties and under "Size and Shape" select "Top-Middle-Bottom" and set the pad size on the unused layer to zero so that there's no pad on that side, does it still throw an error?