Aaron Paul files to legally change his 7-month-old son’s first and middle names

Seven months after welcoming his baby boy, Aaron Paul has reportedly filed a petition to change the little one’s name.

While the infant’s legal name on his birth certificate is Casper Emerson, Paul has publicly referred to him as Ryder Caspian since his March arrival.

The “Breaking Bad” alum now wants to change his son’s moniker to the latter, according to TMZ.

While Ryder and his big sister Story’s last names are already Paul, the 43-year-old actor also wants himself and his wife, Lauren Parsekian, to match their children.

(Despite going by Aaron Paul professionally, the Emmy winner’s real last name is Sturtevant.)

The outlet reported Thursday that Paul’s legal docs state that he and Parsekian, 35, are requesting the changes for consistency’s sake.

As for their newborn, the duo “were required to give a name at the hospital and went with Casper Emerson” — but later came up with a “better” name.

The pair introduced their second child via Instagram in April as Ryder Caspian.

“My little man,” Paul captioned a black-and-white photo at the time. “So happy you are out in this world you beautiful boy you. I promise to make you proud little guy.

“We have been absorbing this baby boy for the last month and feel it’s time to finally share the news of his arrival,” he continued. “We love you endlessly.”

In a post of her own, Parsekian added, “Born on a full moon, he has such a gentle and knowing spirit. I’m so deeply thankful that he chose us to be a part of his journey.”

Later that same month, Paul appeared on “Jimmy Kimmel Live!” and called the baby boy Ryder while revealing Bryan Cranston as the godfather.

“He’s very excited, very honored,” the “Westworld” alum gushed of appointing his “El Camino” co-star.

“I love the man to death. He’s one of my best friends in the world … so it was just a no-brainer.”