We guess this means they're really done!

In a series of Snapchat posts from Thursday, Feb. 9, Khloé Kardashian was seen celebrating her name change with a cake.

MUST SEE: Khloé Kardashian Wants a Baby With Tristan Thompson — Lamar Odom is Not Happy

The 32-year-old, who finalized her divorce from Lamar Odom late last year, has made it official by nixing the "Odom" from documents like her passport and license.

Sister Kim Kardashian was present for the festivities. "Look what Khloé's assistants got for her because she got a new passport," she's heard saying off camera. "How cute is this cake, you guys?"

"It's a big day!" Khloé says, getting ready to blow out the candles.

MORE: Lamar Odom Opens up About His Suicide Attempt

As she's blowing out the candles, the reality star can't seem to get the last one, to which Kim says, "See some things are just so hard to change!" Of course, referencing her sister's long road to the finalization of her divorce.

Since the couple's separation back in December of 2013, Lamar and Khloé's road has not been an easy one. From the NBA star's stints in rehab to hospitalizations from drug overdoses, the reality stars have been through hell and back.

This being said, things on the relationship front are looking up for the Revenge Body star, as a source told Life & Style that things are getting serious between her and basketball player Tristan Thompson. “She wants to have a baby with Tristan right away and isn’t bothered by the fact that he just became a dad,” an insider shared, referring to Tristan's newly born son with ex Jordan Craig.

While Koko sure doesn't look pregnant, we hope this name change is a good step to moving on from her ex!

Scroll through to see Khloé and Lamar’s cutest moments!