How to answer an occupation on Form 1040? (Unemployed right now)

I do not have a job right now. I haven't filed for unemployment. I have been unemployed since September 2020. From January to September 2020 I had been working as a machine operator at a factory. I've already received my W2 from that . That was my only employer in 2020 and that's the only income I earned in 2020. What should I put in Occupation field on Form 1040 when I file my 2020 taxes? (Machine operator or Unemployed?)