--- title: This Simpsons Episode Has Sneaky Mistake You May Have Missed description: There's a sneaky mistake in this episode of 'The Simpsons' that involves baby Maggie and her parents, Homer and Marge. canonical: https://time.com/5388611/simpsons-error/ author: Cady Lang article:opinion: false article:content_tier: free article:published_time: 2018-09-06T15:03:41.000Z article:modified_time: 2026-04-13T07:54:42.374Z og:title: This Simpsons Had a Sneaky Mistake You Probably Missed og:description: Blink and you'll miss it og:url: https://time.com/5388611/simpsons-error/ og:site_name: TIME og:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltb91d927dcbeecd64/6989399586f68e3f186ea181/the-simpsons-maggie-hidden-mistake.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 og:image:width: 1200 og:image:height: 675 og:image:alt: FOX's "The Simpsons" - Season Twenty-Seven og:type: article twitter:card: summary_large_image twitter:title: This Simpsons Had a Sneaky Mistake You Probably Missed twitter:description: Blink and you'll miss it twitter:image: https://static.time.com/v3/assets/bltea6093859af6183b/bltb91d927dcbeecd64/6989399586f68e3f186ea181/the-simpsons-maggie-hidden-mistake.jpg?branch=production&width=3840&quality=75&auto=webp&crop=16:9 ---  # This _Simpsons_ Episode Had a Sneaky Mistake You Probably Missed  by [Cady Lang](https://time.com/author/cady-lang/)  ## Cady Lang Sep 6, 2018 3:03 PM UTC  THE SIMPSONS: Homer tells Maggie a bedtime story about the familys trip to the Grand Canyon with the Flanders clan in the Fland Canyon episode of THE SIMPSONS airing Sunday, April 24 (8:00-8:30 PM ET/PT) on FOX. (Photo by FOX via Getty Images) THE SIMPSONS: Homer tells Maggie a bedtime story about the familys trip to the Grand Canyon with the Flanders clan in the Fland Canyon episode of THE SIMPSONS airing Sunday, April 24 (8:00-8:30 PM ET/PT) on FOX. (Photo by FOX via Getty Images)FOX—FOX via Getty Images  by [Cady Lang](https://time.com/author/cady-lang/)  ## Cady Lang Sep 6, 2018 3:03 PM UTC When you’ve been on the air for 29 seasons like [_The Simpsons_](http://time.com/4667462/simpsons-predictions-donald-trump-lady-gaga/)has, there are bound to be a few slip-ups with the narrative’s continuity, something that [the creators often take in stride](http://time.com/3636198/the-simpsons-25-years/). A pretty significant blunder, however, was recently re-discovered by executive producer [Matt Selman](http://techland.time.com/2007/11/08/the%5Fworld%5Frejoices%5Fas%5Fone%5Fmore/), who took to social media on Wednesday to reveal the sneaky mistake on the beloved show. In episode 13 of the sixth season, Marge tells Homer that she’s pregnant with Maggie, but keen-eyed viewers like Selman will notice that a picture of baby Maggie hangs on the wall behind Marge even though technically Maggie hasn’t been born yet. > [](https://twitter.com/mattselman/status/1037147366564851712) Selman’s discovery prompted a response from _The Simpsons_ writer Al Jean. > [](https://twitter.com/AlJean/status/1037194203208593408) And led to many speculations about the repercussions of the mistake. > [](https://twitter.com/CliffFrancisII/status/1037199727853543424) > [](https://twitter.com/AlJean/status/1037202449893941248) > [](https://twitter.com/tylerobrown/status/1037336741143891971) > [](https://twitter.com/Rewster7/status/1037198349663920128) ```json [{"@context":"https://schema.org","@type":"NewsArticle","@id":"https://time.com/5388611/simpsons-error/","mainEntityOfPage":{"@type":"WebPage","@id":"https://time.com/5388611/simpsons-error/"},"headline":"This Simpsons Episode Had a Sneaky Mistake You Probably Missed","datePublished":"2018-09-06T15:03:41.000Z","dateModified":"2026-04-13T07:54:42.374Z","description":"Blink and you'll miss it","url":"https://time.com/5388611/simpsons-error/","keywords":["Newsfeed","viral"],"thumbnailUrl":"https://static.time.com/v3/assets/bltea6093859af6183b/bltb91d927dcbeecd64/6989399586f68e3f186ea181/the-simpsons-maggie-hidden-mistake.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","author":[{"@type":"Person","name":"Cady Lang","jobTitle":null,"url":"https://time.com/author/cady-lang/"}],"articleSection":"","image":[{"@type":"ImageObject","url":"https://static.time.com/v3/assets/bltea6093859af6183b/bltb91d927dcbeecd64/6989399586f68e3f186ea181/the-simpsons-maggie-hidden-mistake.jpg?branch=production&width=1200&quality=75&auto=webp&crop=1200:675&height=675","width":1200,"height":675,"headline":"FOX's \"The Simpsons\" - Season Twenty-Seven","caption":"FOX's \"The Simpsons\" - Season Twenty-Seven","creditText":"FOX—FOX via Getty Images","representativeOfPage":true}],"publisher":{"@type":"Organization","name":"Time","url":"https://time.com/","logo":{"@type":"ImageObject","url":"https://time.com/images/logo.png","width":528,"height":156},"foundingDate":"March 3, 1923","sameAs":["https://www.facebook.com/time","https://www.instagram.com/time/?hl=en","https://twitter.com/time","https://www.pinterest.com/timemagazine"]}},{"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"/tag/time-section-newsfeed/","name":"Newsfeed"}},{"@type":"ListItem","position":2,"item":{"@id":"https://time.com/5388611/simpsons-error/","name":"This Simpsons Episode Had a Sneaky Mistake You Probably Missed"}}]}] ```