Minor Avengers: Endgame spoilers ahead!

Avengers: Endgame hits theaters in just a few hours and by now, you might know that Marvel did not include any mid or post-credits scenes in the hit movie.

However, there is an audio clip that plays briefly at the very end of the credits as the Marvel logo appears on the screen. Fans think it’s Marvel’s way of letting them know that the journey will continue.

The sound is a sort of metal on metal banging sound, which many have linked back to 2008′s Iron Man when Tony Stark (Robert Downey Jr) is creating the Mark I Iron Man suit. Check out this YouTube clip to see what we mean!

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