I'm trying to set up a death script for enemies

Hey there, could someone please check my code and let me know where I'm making errors.

I'm having issues with: Assets/EnemyLogic.js(9,23): BCE0044: expecting :, found ';' In reference to this code:

 #pragma strict
 
 var Health = 100;
 
 function Update ()
 {
     if(Health <= 0);
     {
         Dead();
     }
 }
 
 function ApplyDamage (TheDamage : int)
 {
     Health -= TheDamage;
 }
 
 function Dead()
 {
     Destroy (gameObject);
 }