Congrats, Charlize Theron!

The 40-year-old actress won the best female performance honor at the MTV Movie Awards on Sunday, April 10 for her portrayal of Imperator Furiosa in 2015’s Mad Max: Fury Road — and dedicated her win to one very special person in her life!

“Tonight I accept this award on behalf of my own little Furiosa — my daughter, August Simone,” Charlize said of the little girl she adopted last July.

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Charlize with daughter August and son Jackson in February 2016.

“I [also] want to thank my beautiful son, Jackson, for putting a smile on my face every day,” she continued. “He was with me while I made this film.”

RELATED: Charlize Theron Gets Candid About Her Split From Sean Penn — See What She Revealed!

Following her highly-publicized split from boyfriend Sean Penn, Charlize adopted baby August as a single mom in July 2015. She previously adopted son Jackson, 4, in 2012.