Increase speed of object that enters OnTriggerEnter

Hey guys, I have a booster script so which boosts the speed of any object which collides with the the booster zone.

void OnTriggerEnter(Collider other)
if (other.gameObject.name == "Coin")
{
    Debug.Log("Boost Speed Here");
}

The booster script is attached to the booster zone. There is a rigidbody attached to the object to be boosted as well as a wheel collider. There is a sphere collider attached to the booster zone. Can anyone tell me why the debug message is not printing? Thanks