After Ryan Gosling's young daughters visited him on the set of "First Man," in which he plays Neil Armstrong, they think their dad's a real astronaut, Mom Eva Mendes says.

Mendes told ET Canada that their daughters, 4-year-old Esmeralda and 2-year-old Amada, loved visiting Dad on set. "And they now think Papi’s an astronaut." She added, "We haven't corrected them yet."

No rush. Maybe after the film hits theaters (October 12) and finishes its awards-show orbit. (Yes, we're in for a season's worth of astronaut puns.)

In his 2017 Golden Globes acceptance speech for "La La Land," Gosling memorably gave a heartfelt shout-out to Mendes, saying, "I would like to try to thank one person properly and say while I was singing and dancing and playing piano and having one of the best experiences I've ever had on a film, my lady was raising our daughter, pregnant with our second, and trying to help her brother fight his battle with cancer."

Since Mendes hasn't acted much in the last few years (her last role was in Gosling's 2014 directorial debut, "Lost River,") she says the kids have no idea she's famous too.

“I’m just Mom to them, and they never see me get ready for anything. It's very important for me for them to see me as just Mom, and I’m just, you know, a messy mom. When I go out with them, I really don’t put an emphasis on how I look — not yet."

[Via ET Canada]