Collision between 2 prefabs.

I'm trying to detect collision between a bullet and a target both of them are prefabs that are moving objects. This is the code i've attached to the bullet for detecting collision using UnityEngine; using System.Collections;

public class collision : MonoBehaviour {

 void OnCollisionEnter(Collision collide){
     
     if(collide.gameObject.name == "target"){
         
         print("hit");
         Destroy(collide.gameObject);
         Destroy(this.gameObject);
     }
              
 }

}

Both the target and bullet are rigidbodies and collide and everything but the code within if statement is not getting executed..