When you have a new child, it is important to update your will to include your new child, so that he or she is included, and to avoid unnecessary probate expenses. In order to update your will, you don't need to rewrite the entire thing. All you need to do is create a codicil (modification to the will) and specify what part of the will you would like changed so that your new child is included. Reference the location and the specific language you will be affecting. Be as clear and precise as possible to avoid undue complications. This form is not a substitute for legal advice. When making a codicil, it is highly recommended to seek the advice of a qualified estate planning attorney to avoid complications and assure that your codicil states your modified wishes.