typo in example code

I think there is a typo in the following page:

https://www.arduino.cc/en/Tutorial/SerialCallResponse

// read second analog input, divide by 4 to make the range 0-255:
    secondSensor = analogRead(1) / 4;

It should be

// read second analog input, divide by 4 to make the range 0-255:
    secondSensor = analogRead(A1) / 4;

A1 = 1 for analogReads https://www.arduino.cc/en/Reference/AnalogRead