[dunham]

It looks like the linked knife has a handle sticking out of the blade specifically for grabbing on to. Perhaps you have a different model?

[StavrosK]

Ahh, I missed that that was a handle. Mine looks more like this:

https://www.swiss-knife.com/media/catalog/product/0/_/0.9523...

When the blade is folded, only the little notch sticks out. Very hard to open.