What adhesive to reattach wire to rear defroster?

I now know why my rear window defroster quit working. I was getting something out of the back of the car the other day and noticed that the wire going to the heating element grid on the glass was hanging in mid air, no longer connected to the grid. My initial thought was to use some super glue, but it occurred to me that I'm not sure whether super glue would interfere with the conductivity or not. Anyone got any suggestions for an adhesive appropriate for this application?