I did an history gcse exam on tuesday and i put a name wrong and im scared, should i be?

i revised so much and i was so nervous, the test was about crime and punishment and the american west. i answered a couple of questions were i included a name Luddites (rioters/protesters) and i found out today that the correct name was puritans (strict protestants) i did put in brackets strict protestants because i did not know the correct spelling so will i lose alot of my marks or will i be ok. my teachers i says i should be alright but its a long time until august and im pretty scared. please answer. thank you alex