Award-winning actor Leonardo DiCaprio had high praise for teenage climate activist Greta Thunberg, calling in her "leader of our time."

The 44-year-old actor posted a picture of him and Thunberg Friday with the caption reading "There are few times in human history where voices are amplified at such pivotal moments and in such transformational ways – but Greta Thunberg has become a leader of our time."

DiCaprio also said in the post that he hopes the Swedish teen's activism is "a wake-up call to world leaders everywhere."

Like Thunberg, DiCaprio is a climate activist. His Leonardo DiCaprio Foundation focuses on the "protection and well-being of all Earth's inhabitants," according to the non-profit's website.

Earlier in the week, Thunberg won the Nordic Council's top environmental award, but turned it down, saying the climate movement does not need any more prizes."