According to guidelines,
If you have taken complete dose ( 2 injections 4 weeks apart) of tetanus within past 5 years and having minor wound require no vaccination.
(Because the protective antibodies are there for more than 5 years )
Hope this helps :)
Next Steps
If you don't remember if you've taken complete dose or not, just go for a single dose tetanus toxoid. You'll be safe. :)