This past weekend, The Simpsons lost one of their most well known and beloved voices in Marcia Wallace, who voiced Mrs. Krabappel over the course of the series’ run on FOX. Wallace died at her home in Los Angeles this past weekend and as a result, the show she helped make special for so many years will be retiring her character and honoring her with a tribute episodes airing this Sunday night.

According to Entertainment Weekly, The Simpsons will preempt a scheduled re-run of American Dad at 7:30pm ET to air a re-run of the classic episode ‘Bart The Lover’ which Wallace won an Emmy Award for her work in. The episode, which m any Simpsons fans still regard as one of the best episodes in the show’s run, centers around Bart Simpson catfishing his teacher into thinking she’s dating an incredible man who looks like Detroit Red Wings legend Gordie Howe.

In addition to the special airing of the classic Simpsons episode, the producers will honor Wallace at the end of the scheduled episode at 8pm ET with a title card honoring her memory.

Al Jean, one of the producers of The Simpsons has stated that the show intends to retire the Mrs. Krabappel character in Wallace’s honor but there haven’t been any plans as to how that will happen. When The Simpsons have been faced with off-screen tragedy in the past, they haven’t made a spectacle of sending a character off, and it’s expected that the retiring of Mrs. Krabappel will be similarly subtle.