I cannot see the crack or am not sure if what I m looking at is the crack. It does not matter though because the solution is the same. Take a needle and give it the lightest of scrapes to clean as much as you can, right inside the crack. Be very careful and use little to no pressure. Fill it with crazy glue and let it dry and then carefully cut the excess away with a razor blade when it has dried. No telling how long it will last with or without that, but I like to think it helps.