If not a mistake, maybe an expression which was created somewhere for some use, and needs its context of use to be understood... Where did you see that ? But remember the " - " ("hyphen" in English ?) doesn't always make an expression of 2 words, it can be used as a pause in some sentences.

A daily coffee?

what do you mean by "jour-café? I didn't understand or put it in a sentence and I'll explain