Audio when using OnMouseUp

The code I put was

var sound: AudioClip;

function OnMouseUp(){

audio.PlayOneShot(sound);

}

it is not working. On the object I put the audio sound and an audio source. please help.

Try making it an AudioSource instead: (Make sure to attach it in both the script and inspector)

 var sound : AudioSource;
  
 function OnMouseUp() {

AudioSource.PlayOneShot(sound);
       
    }