Now he’s in a boatload of trouble.

The one-legged, sailboat-dwelling Florida man known as “Lieutenant Dan” — who went viral for refusing to abandon his sailboat during Hurricane Milton — was tossed in jail Friday because the vessel was unregistered, according to Tampa Police.

Joseph Malinowski, 54, of Tampa Bay, was hauled away by police because he didn’t have a device to discharge sewage from his 20-foot-sailboat, creating a public health hazard, cops told WTSP.com.

The seafaring scalawag, who fans last week called a “cult hero,” refused to leave the park-side dock after “numerous warnings,” police said.

He also had two outstanding warrants for failure to appear in court and trespassing in a city park, cops added.

Malinowski became an overnight sensation when TikTok videos emerged of him claiming he would ride out the raging Category 5 storm on his floating home last week.

His ship and single leg earned him the nickname “Lieutenant Dan,” a reference to the lovable but troubled Vietnam vet played by Gary Sinise in the Oscar-winning 1994 flick Forrest Gump, who survived a hurricane on a boat.

During the storm, he was “rescued” and later taken to a shelter on Oct. 9, according to Tampa Mayor Jane Castor.

His sailboat has since been impounded, police said.

In April 2022, Malinowski — who has a lengthy rap sheet  — was released after a one-year prison sentence for punching a police officer in the nose, WUFT reported.