Which preposition to use with jinx

before Occurrences 1%

"Let's make a magic over her," suggested Hinpoha, "and then she can't lose," Hinpoha was always having rings wished on her fingers, and running around her chair to change her luck, and building rain jinxes before starting out on excursions.

on Occurrences 1%

You've sure got a jinx on you.

Which preposition to use with  jinx