Mirinaba curitybana (Lange de Morretes, 1952) is a Brazilian endemic land snail restricted to the surroundings of the city of Curitiba, Paraná state. Among the very few mentions of the species available in the scientific literature, there are three different spellings of the stem of its specific epithet. To address and solve this long-standing issue we reviewed all literature that ever cited the species and propose the adoption of the spelling Mirinaba curitybana. We also provide relevant comments on the form of citation of the author Frederico Lange de Morretes (1892–1954).