Side-mounted canopy -- Prevent blowing shut?

I have a side-mounted canopy (Ventus 2). I'm concerned that a gust of
wind could blow it shut when it's in the open position, breaking or
damaging the canopy.

I could close it every time I walk away for a minute or two, but
sooner or later I tend to forget and leave it open. I've thought about
several ways to hold it open without undue stress on the hinges or
canopy, but I have to assume someone else has probably solved this
problem and proved through actual use a simple method what works.

I'd like hear from anyone who has come up with a good solution.
Thanks,

- Frank Allen