The reclosing mechanism for containers, particularly beverage containers, has the latch (3) fitted slidingly in the opening (5). Formed on the top side of the latch (3) there is an attachment (14) shorter than the opening (5) and narrower than the latch (3), where the attachment (14) is fitted with a pull tab (4) longer than the attachment (14) and fixed to the attachment (14) with a hinge (6) and a connector (7) which serves as the seal before the first opening. Formed on the opposite longitudinal sides of the attachment (14) there are catches (8) fitted slidingly on the guides (13) formed on the longer side walls of the opening (5). On the top surface of the element in which the opening (5) is made there are protrusions (10) formed on the side of the pull tab (4) front, on which the pull tab (4) rests and blocks the sliding of the latch (3) in the closed position.