“The scar had not pained Harry for nineteen years. All was well.” [1] Chances are, you remember quite well when and where you read this sentence for the first time. It might have marked the end of the Harry Potter-era, but started a seemingly endless supply of fix-it fic: fanfiction that addresses a – according to the author – unfathomable error in the original work and tries to set it straight. Especially the final Harry Potter book has lead to an innumerable amount of such works. Yet, Harry Potter is far from the only franchise inspiring fanfiction writers all over the world to fix their predecessor’s errors. How has this genre developed over the years?