You can win HQ, but you’ll never get that money. Probably.

You may be a trivia buff but you're no match for company lawyers.

A provision in viral trivia app HQ's terms of service unearthed Monday by Vox presents a loophole for the company to get out of paying prize money to some winners.

It was already common knowledge for players of the daily live trivia app that you needed to bank at least $20 before you could cash out. But the terms of service seem to indicate that there's a time limit to accrue that amount, or your winnings get erased:

The winner must cash-out the Prize within 90 days after the date of notification of such Prize. A Contest winner's failure to cash-out the Prize within the specified 90 days will be considered such Contest winner's forfeiture of the Prize and Sponsor may, at its option and sole discretion, choose not to award the Prize at all.

As more people play HQ, the pot often splits into amounts that fall far below the $20 threshold. Mashable managing editor Annie Colbert knows that pain:

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If you're not winning consistently, you may not reach the payout hurdle before the 90-day period. If enough users are forfeiting their prize money, this could have a significant impact on the company's cash flow.

We reached out to HQ to get more information about how and whether winnings expire and will update this post if they respond.