Getting "setter called: ${owner}" instead of "setter called: Ashley" in console

class Pet {
  constructor(animal, age, breed, sound) { 
    this.animal = animal;
    this.age = age;
    this.breed = breed;
    this.sound = sound;
  };

  get activity() {
    const today = new Date();
    const hour = today.getHours();

  if (hour > 8 && hour <= 20){
    return "playing";
  } else {
    return "sleeping";
  }
}

get owner() {
  return this._owner;

}

set owner(owner) {
  this._owner = owner;
  console.log("setter called: ${owner}");
}

  speak() {
    console.log(this.sound);
  }
}

const ernie = new Pet("dog", 1, "pug", "yip yip");
const vera = new Pet("dog", 8, "border collie", "woof woof");


ernie.owner = "Ashley";
console.log(ernie.owner);