Most first-generation migrants are only eligible for Luxembourgish citizenship after they have lived continuously in the country for five years. Their children and grandchildren are not automatically Luxembourgish, but must pass additional requirements. Other than a simple language requirement assessed through a free, non-structured interview, no other condition measured by MIPEX is imposed. However, applicants are handed a special name change form that offers to replace their name with a Luxembourgish equivalent. Naturalised citizens are partially insecure under the law, since their citizenship can be withdrawn at any time, even if it leaves them stateless. This last point is particularly significant, since they are forced to give up their original citizenship when they naturalise (see box).