Up on the roof

Saw a tiny raindrop hanging at the side of the skylight of the sunlounge room (which is part of the kitchen) before we went to sleep last night.
So I had to go up today to solve the problem.
Did not really see a problem at that point so it might have been a coïncidence. But: I saw a tile at the other part of the roof with a crack and changed that one. So not a mission impossible....