Abstract: A device for supplying sealing liquid into a tire has a connecting flange that can be attached to a valve of a tire. An essentially cylindrical housing is arranged on the connecting flange, wherein the cylindrical housing has a connector for supplying the sealing liquid and a hollow space extending at least from the connector to the connecting flange. A valve screwdriver is arranged in the cylindrical housing so as to be movable in an axial direction of the cylindrical housing, wherein the valve screwdriver has a receptacle for detachably connecting the valve screwdriver to a valve insert of the valve of the tire such that the valve insert is removable by the valve screwdriver in the axial direction when the sealing liquid is to be supplied into the tire. The device for supplying sealing liquid as a whole has an ergonomic and essentially elongate cylindrical shape.