Pete Davidson has spent most of his life dealing with the loss of his father on 9/11. But becoming a father himself has given that loss a new meaning.

The former “Saturday Night Live” star is now 33 — the same age his father, New York City firefighter Scott Davidson, was when he died responding to the terrorist attacks on the World Trade Center on Sept. 11, 2001.

“I thought, ‘Oh, he was an old guy. He’s 33,’” Davidson told the New York Post. “But now I’m there, and I have a kid, and that would be like my kid not having her dad.”

Davidson welcomed his daughter, Scottie, with ex-girlfriend Elsie Hewitt last December. Her name is a tribute to Davidson’s father, whose nickname was Scotty.

“It was really cool that Elsie also wanted to name her Scottie,” Davidson said. “When she arrived, we both looked at her and were like, ‘She looks like a Scottie.’ It’s nice to keep that name alive.”

Now, as the nation marks 25 years since 9/11, Davidson said the anniversary feels different. He plans to spend part of the day with his daughter before participating in a comedy benefit at Madison Square Garden with Jon Stewart.

“This year is extra tough, but also extra beautiful because I get to spend the day with Scottie,” he said. “It’ll be very healing and special.”

Davidson was only 7 when his father died. He has previously said his father’s fire company was among the first to respond to the World Trade Center, and much of the crew was killed.

Because Davidson was so young, he said he did not fully understand what had happened at the time. His mother initially tried to shield him from the news, telling him his father was still at work. Davidson later learned the truth after turning on the television and seeing his father listed among the firefighters who had died.

The grief came into sharper focus as he got older.

“I was really young, so I didn’t know what happened, so it hit me later,” Davidson said during an earlier podcast appearance. He has kept several belongings from his father, including his firefighter badge, chain and jacket.

Davidson remembers his father as funny and almost always smiling. Even people who knew him years ago, he said, still light up when they share stories about him.

Now Davidson faces a question his own mother once had to confront: how to explain an unimaginable loss to a child. He said he has not yet decided how he will eventually tell Scottie what happened to the grandfather whose name she carries.

“Luckily, I have some time,” Davidson said.

But fatherhood has already changed how Davidson understands what his own family lost 25 years ago.

“Honestly, this year is way harder than it’s been in a really long time because I have Scottie, and now I’m the age that my dad was when he died,” he said. “So I’m just kind of like, ‘Holy s—.’”