Help with: Calling the setter with a Celsius value should set the temperature

I do not know how to finish this problem. I do not understand how to fix: Calling the setter with a Celsius value should set the temperature.

  **Your code so far**
// Only change code below this line
class Thermostat{
constructor(temp){
  this._temp = temp;
}

get temperature(){
  return 5/9 * (this._temp -32);
}
set temperature(updateTemp){
  this._temp = updateTemp;
}
}
// Only change code above this line

const thermos = new Thermostat(76); // Setting in Fahrenheit scale
let temp = thermos.temperature; // 24.44 in Celsius
thermos.temperature = 26;
temp = thermos.temperature; // 26 in Celsius
  **Your browser information:**

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Challenge: Use getters and setters to Control Access to an Object

Link to the challenge:

This accepts a value in Fahrenheit

This accepts a value in Celsius

But you treat the received number in the same, as if they was the same scale. You need to change something here