Age calculator doesn't work properly

In the new format of IMDb the age calculator seems to calculate all ages by subtracting birth year from this year or year of death in the case of individuals who are deceased.  This means that if we haven't reached the subjects birthday yet this year his or her age is presented as a year older than it is.  Ditto if the person died before his or her birthday in the year of death.  The old format didn't have this problem.