Chipotle is launching Guac Mode. It is an exclusive benefit for Chipotle rewards members.

Members will be able to unlock access to surprise free guacamole rewards.

Chipotle is teaming up with Cash App to spread the word–and the guacamole.

Follow @ChipotleTweets and @CashApp on Twitter.

Drop your CashApp tag and use the hashtag #ChipotleGuacMode as a response to the tweet for a chance to win extra cash.