WICHITA, Kan. (AP) — A foster dad has pleaded guilty to involuntary manslaughter for leaving a 10-month-old girl inside a sweltering car outside of his house while he and his partner smoked marijuana.

The Wichita Eagle  reports that Seth Jackson entered the plea Wednesday.

Sedgwick County District Attorney Marc Bennett says Jackson went to a drug dealer’s house July 24 before picking up the girl from a baby sitter. After arriving home, he went inside with a 5-year-old child, but left the baby in the vehicle.

It was around 90 degrees outside, and police say the girl was inside the car with the windows up for more than two hours. An autopsy showed she died of hyperthermia due to heat exposure.

Sentencing is set for Jan. 30.