Nicole Kidman is paying tribute to her late father in a very special way.

While accepting the Best Actress honor at last night's Evening Standard Theatre Awards in London, the 48-year-old actress dedicated the accolade to her dad, Dr. Antony Kidman, one year after his sudden death.

nicole kidman father

Nicole with her dad in January 2005.

“I did this [play] because my father died a year ago, and he was a scientist… This is my way of acknowledging him, but also of acknowledging people in science who quietly go about their work and do things and go unacknowledged a lot of the time,” Nicole said of the award she won for portraying scientist Rosalind Franklin in the play Photograph 51 earlier this year.

RELATED: Family First! Nicole Kidman Wants Her Widowed Mother to Move in With Her and Keith Urban

“He knew I was going to do [the show], so I would like to think he is somewhere offering support," she continued.

nicole kidman and keith urban

Nicole with husband Keith Urban at the Evening Standard Theatre Awards.

During her speech, the mom-of-four additionally revealed she took a minute to kneel before an old photo of her father before each of her performances. “I did this for him,” she said. “He would give me the strength to do this every night.”

RELATED: Standing Strong! Nicole Kidman Refuses to Let Keith Urban Cheating Rumors Destroy Her Marriage

Nicole's dad passed away unexpectedly after suffering a fall in Singapore in September 2014. He was reportedly visiting Nicole's sister, Antonia, and her six children in Singapore at the time of the tragic accident.

Watch a clip of Nicole's emotional acceptance speech at the Evening Standard Theatre Awards below.