Another famous incident occurred in a game between Milan Matulović and István Bilek at the Sousse Interzonal in 1967. Matulović played a losing move but then took it back after saying "J'adoube" ("I adjust"—which should be announced "before" adjusting pieces on their square). His opponent complained to the arbiter but the modified move was allowed to stand. This incident earned Matulović the nickname "J'adoubović".