Christmas just got a little sweeter.

Netflix revealed Sunday via Twitter that Marvel's Luke Cageis definitely coming back for a second season...we just don't know when.

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The 13-episode first season of Luke Cagefollows the bulletproof hero of the Harlem streets as he learns more about his past and his powers.

It's also the most we've seen so far in a Marvel show of Claire Temple (Rosario Dawson), who appears in Daredevil and Jessica Jones -- both of which are due for new seasons in the coming year, along with The Defenders, which will unite Netflix's greatest heroes in an epic team up.