Between 1964 and 1986, the family dictatorships of François “Papa Doc” and Jean-Claude “Baby Doc” Duvalier returned to Dessalines’ black and red design. They included the national coat of arms, but altered the flags in its trophy to black as well.
Because the coat of arms is only used for national and military flags, whereas the civil flag consists solely of the two unaugmented horizontal bands, it was discovered at the 1936 Summer Olympics in Berlin that Haiti and Liechtenstein were using the same flag. This led to the addition of a crown to the design of the flag of Liechtenstein.