My script says object is not colliding with the tag! But it is!

var col:Collider;

function Update(){
if(col.gameObject.tag=="tag super duper")

Can you please show the whole code?
Potentially you are not using the right collider (namely the one from OnCollisionEnter) but one that you manually assigned.

also can you provide the full name of the tag (I doubt its something with spaces)