gameObject.Find() returns null.

Hey there!

I am trying to create a script for a smokegrenade, the Smokegrenade contains a particle emitter which emits a thin trail of smoke as the grenade is fired and then after 3 seconds the Smokegrenade's child object 'SmokeCap' is supposed to start emitting the thick smoke, but for some reason the variable GrenadeMuzzle that i created on line 6, returns null instead of returning an object, am i doing something wrong?

Here is my Javascript:

 #pragma strict
 var GrenadeTime = 0f;
 private var oneSecond = 0.001f;
 var duration : int = 20;
 var despawnTime : int = 60;
 var GrenadeMuzzle = gameObject.Find("SmokeCap");
 
 function Start () {
     
 }
 
 function Update () {
     print(GrenadeMuzzle);
     GrenadeTime += oneSecond + Time.deltaTime;
     print("GrenadeTime: " + GrenadeTime);
     if (GrenadeTime >= 6) {
         particleEmitter.emit = false;
         GrenadeMuzzle.particleEmitter.emit = true;
     }
     if (GrenadeTime > duration) {
         GrenadeMuzzle.particleEmitter.emit = false;
     }
     if (GrenadeTime > despawnTime) {
         Destroy(this.gameObject);
     }
 }