In the picture, which appears to be taken in her Porsche, the 65-year-old wears sunglasses and has her hair styled in a simple blowout.
“No #SocialMediaQueen can be crowned without posting a selfie, so here’s my first!” she wrote as the caption, including a link to the voting page for the award.
Jenner, who currently stars in her own docuseries, I Am Cait, was nominated for the social media queen award. She Tweeted about the nod a week ago, writing, “And to think I wouldn’t have qualified for this nom a few months ago What an honor!”
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Jenner joined Twitter in June and quickly broke a record, gaining more than 1 million followers in just hours.