That's an interesting point so I Googled this:
'Is North Korea a communist country?'
Officially, North Korea is an "independent socialist state" which holds democratic elections; however, outside observers have described the elections as unfair, uncompetitive, and pre-determined, in a manner similar to elections in the Soviet Union. The Workers' Party of Korea is the ruling party of North Korea. Government: Dictatorship, Juche, Totalitarianism, One-party state, Socialist state, Communist state