Direction isn't changing after multiplying it *-1

Hello, i'm trying to make a cube move between 2 walls, everytime it hits a wall the variable that's changing its x position gets multiplied by -1 so the direction change, but this isn't working

This is the code attached to the walls(BoxColliders) #pragma strict var cube1 : Transform; var forceDirection = -2;

         function OnCollisionEnter(collision : Collision) {
     Debug.Log(forceDirection * -1);
 forceDirection = forceDirection * -1;
 }
 
 function Update () {
 
 cube1.transform.Translate(forceDirection * Time.deltaTime, 0, 0);
 
 }

This is a link to see what's happening, btw, the Debug.log is giving a forceDirection * -1 value

neoxads.com/sohaib/Test/Test.html

Thank you for reading, i'm looking forward for answers