Flying Zombie

     public Transform target;
     public int moveSpeed;
     public int rotationSpeed;
     public int maxdistance;
 
     private Transform myTransform;
 
     void Awake(){
         myTransform = transform;
     }
 
 
     void Start () {
         GameObject go = GameObject.FindGameObjectWithTag("Player");
 
         target = go.transform;
 
         maxdistance = 2;
     }
 
 
     void Update () {
         Debug.DrawLine(target.position, myTransform.position, Color.red); 
         myTransform.rotation = Quaternion.Slerp(myTransform.rotation, Quaternion.LookRotation(target.position - myTransform.position), rotationSpeed * Time.deltaTime);
 
         if(Vector3.Distance(target.position, myTransform.position) > maxdistance){
             //Move towards target
             myTransform.position += myTransform.forward * moveSpeed * Time.deltaTime;
 
         }
     }
 
 }

Enemy is flying when the Player jumps..............Any Solutions/..........