The wealth and status publication recently claimed that Kylie, 20, was on track to becoming a billionaire through her make-up line.
And it was rumored that Kim was not best pleased by the article.
While there was also backlash from fans, who claimed that Kylie's wealth came as a result of her famous family connections.
But in a new interview mom-of-three Kim has now publicly backed her sister.
She said: "'I really didn't get it, because she is 'self-made' — we are all self-made."
She added: "'What, because we came from a family that has had success? To me, that doesn't really make sense... I know so many people like that who haven't turned out to be as successful as Kylie. If anything, I've seen the complete opposite."
Both sisters made it on to Forbes 2018 list of the 60 Richest Self Made Women.
And Kim, 37, is adamant that neither she, or her sister, depended on 'hand-outs' from her parents.
"That's how I lived my life with my dad Robert Kardashian. He never gave me anything," she revealed.
"We might have the opportunity, but I've seen it go the complete opposite way. Nobody works harder than my sisters and my mom."
RadarOnline.com revealed how Kim was previously upset with how much money Kylie was raking in.
And that she had feigned approval of Kylie's success but now she seems to want to jump on the bandwagon and is backing her.
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