Nodejs can't access object member within method

I'm setting a variable in the constructor and I can't access it from one of the methods as "this" refers to the function (it shouldn't be the case). Here's what it looks likecode:

class myClass {
    constructor(variable) {
        this.variable = variable;
    }
    test(packet, next) {
        console.log(this.variable)
    }
}

I'm using VS 2017 in case that matters.

via aslad