Xavier's plan was to take to the streets of Vila Rica and proclaim a Brazilian Republic on the day of the derrama, in February 1789, when tax was due to Portugal and the sentiment of revolt among Brazilians would be stronger. Joaquim Silvério dos Reis, one of the conspirators, exposed the plot in exchange for a tax waiver. The governor of Minas Gerais cancelled the derrama and ordered the imprisonment of the rebels.