I have recently come to Canada on a student visa ( obtaining both work and study permit). I filled up the visa documents my self and I just realized that I forgot to mention my younger sibling in the family information sheet (IM 5645E). I signed in the place place where it says that I certify all of the info I provided is correct, and I am also aware of the fact that they will refer to all info I provided for any future actions. It was my mistake to not fill out the form carefully. In the future I plan to apply for a PR for myself and in due time for my parents and sibling. How big of a problem is this and can anyone kindly tell me if there any solution to this problem. Any advice would be appreciated.