An aircraft nacelle that makes it possible to channel a stream of air in a longitudinal direction and that includes at least two panels (50, 50′) placed end to end in the longitudinal direction, each including a so-called aerodynamic surface (52, 52′) that is in contact with the air stream and an edge (54, 54′) that is in contact with the edge of the other panel, characterized in that at least one of the panels includes—at its edge (54, 54′)—at least one partition (58) that projects relative to the edge that extends in the direction of the edge of the other panel, in a manner that is secant to the aerodynamic surface and in a plane that contains the longitudinal direction, so as to limit the circulation of air between the edges of the panels.