in the story of kisagotami loses her son to a disease. she is driven mad by the greef and goes to visit the buddha. He tells her he can restore the life of her son if she gathers musterd seeds from a house that had no seen death. this was to teach kisagotami she is not the only one that has suffered loss.
this little white lie was obviously with right intention, but a lie nontheless. is it not agains the 4th precept. (False Speech)