It happens to the best of us: You’ve been sworn to secrecy after receiving great news. You try your best to keep your lid shut and the next thing you know, you have a Freudian slip and it’s far too late: The beans have been spilled.

Such may have been the case for Venus Williams who reportedly accidentally revealed that her sister Serena Williams would be having a girl during an Eurosport interview at the French Open.

When asked what the baby would call her, Venus replied She’s going to call me `favorite aunt.’”

Serena set the record straight via Twitter, mentioning that she doesn’t even know the sex of her baby:

Sure, Serena.

TELL US: Do you think Serena really doesn’t know the sex of her baby or just doesn’t wan’t the public to know?