An apparatus for forming a finger-engaging portion in a stay-on-tab of a lid of a container includes a support, a fixture mounted to the support for movement between a first position and a second position in opposition to stay-on-tab of the lid of the container, and an abutment mounted to the fixture for movement between an open position and a closed position in opposition to the fixture and the stay-on tab in the second position of the fixture to bend the stay-on-tab between the fixture and the abutment to form in the stay-on-tab a finger-engaging portion that is upturned relative to the lid of the container.