Audio won't play

Hey. I am trying to do some platformer 2D game, so i have my movement done yet, and i want to write script for picking up coins. Destroying object on collision works perfect but audio wont' play no matter what. Here's the code:

 @script RequireComponent(AudioSource)
 
 var clip : AudioClip;
 
 
 function OnCollisionEnter2D(coll: Collision2D){
 audio.PlayOneShot(clip, 1.0f);
 Destroy(gameObject);
 }