An off-duty NYPD officer was busted in Queens late Wednesday for punching her sister during a squabble over a slipper, cops said.

Officer Rosanna Espinal, 28, slugged her 37-year-old sister multiple times as the dispute between the siblings heated up, police said.

The older sister had no visible injuries, police said. Cops would not give the exact location of the incident, but said it happened inside a residence.

Espinal was arrested around 10:30 p.m. in the confines of the 113th Precinct, which covers an area including southeastern Jamaica, St. Albans, and Hollis, police said.

She was charged with assault and harassment, cops said.

Espinal, who has been with the NYPD since 2016 and is stationed in Manhattan, has been suspended without pay, cops said.