It was just a stink bomb.

An adult diaper thought to be an explosive rerouted a plane bound for Florida on Friday.

Officials ordered a Copa Airlines flight headed from Panama City to Tampa to turn back so that a suspected bomb threat could be investigated after it spent about an hour in the air.

The Boeing 737-800 returned back to Panama City’s Tocumen International Airport around 11 a.m. local time and brought to an isolated stretch of tarmac.

The 144 passengers aboard had to get off the plane so anti-explosive teams could search the aircraft.

But it was an adult diaper wrapped in a black plastic bag in one of the plane’s bathrooms that prompted the scare, the National Police of Panama announced on X.

“We had it on a secure runway where police special explosives canine units and special forces examined the object, and found it to be an adult diaper, ruling out any risk,” Castro said.

The flight, which originally took off at 9:36 a.m. before returning to Panama City, then took off just after 2 p.m. and arrived to Tampa just before 7 p.m.