ToString does not seem to work for me

Hi fellow devs,

I ran into a problem, where ToString() does not work for me, I'd like to
post here before I open a bug ticket, I am sure I did something wrong.
My classes below.

Main.groovy:

class Main {
    static void main(args) {
        println(new Card(name: "hey"))
    }
}

Card.groovy:

import groovy.transform.ToString;

@ToString
class Card {
    String name;
}

My output:

Card@43f02ef2

I expected the class to be pretty printed into my console, but that is not
the case.
What do I do wrong?

I am building with
Intellij 2020.3.2
Groovy 3.0.7
OpenJDK 15.0.2

Any suggestions?

Cheers, Daniel