The 21-year-old Spider-Man: Homecoming actor posted on Instagram Friday a sweet tribute to his co-star for her 21st birthday.
He shared a couple of photos of the two posing together.
"Thinking about how to get taller," Tom wrote. "Happy birthday mate. Miss you and I'll have a drink for you. #21stbirthday."
Zendaya herself is not keen to start drinking, despite now being of legal age in the United States.
"Today I turn 21! Holla!!! But just because I'm now the legal drinking age, doesn't mean I'm going to start throwing 'em back," she wrote on her website. "I don't plan to start drinking. My life is too stressful to need help with relaxing by having a cocktail. This industry is way too nuts for me to not be in control of myself and my decisions, so I just don't want to introduce drinking! Plus, I don't want drinking to become a vice. Why try something if you don't need it?!"