65 ILCS 5/7-1-44

All valid ordinances or resolutions of, and all valid decisions determined through a referendum of the voters in, the whole or a part of any municipality which is annexed in whole or part to another municipality, regulating or prohibiting the sale of alcoholic liquor shall remain valid, notwithstanding the annexation, until validly changed by a compliance with "An Act relating to alcoholic liquors," approved January 31, 1934, as heretofore and hereafter amended. However, the local liquor control commission and commissioner of the annexing municipality shall have jurisdiction over the annexed territory.