Rabies infection has no treatment so it's always better to get a post exposure vaccine with the benefit of the doubt it will increase your antibody titre and will help your immune system fight the virus in later years too.You should remember that the incubation period of the virus is upto 14 years.
Next Steps
Do first aid,wash the wound in running cold water with any soap,use spirit to clean the wound.Assesa the wound by a professional
Health Tips
since you are already immunised for the year the doctor might give you 0, and 3rd day shots only.