Crank Window

Hello. I have a 1990 Geo Prizm (or Chevy as some people say) with crank windows. The driver's window goes down fine. When rolling it up, it leans forward and you have to push it back while cranking it. :banghead: There is no hole on the edge of the window for a clip. Does anyone know how to get the window to stay in the side track? Thank you in advance!