this Keyword in Different Contexts

How can you fix the 'this' binding in this code?
class Button {
  constructor(text) {
    this.text = text;
    this.clicked = false;
  }
  click() {
    this.clicked = true;
    console.log(`${this.text} clicked`);
  }
}

const button = new Button('Submit');
const onClick = button.click;
onClick();
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