Help with input code please (c#)

Hi Guys, I am trying to write a script where when i press enter i go to the next scene, but i cant seem to get it to work.

 using UnityEngine;
 using System.Collections;
 
 public class MenuToLevel : MonoBehaviour {
 
     void Start () 
     {
         
     }
     
     // Update is called once per frame
     void Update () 
     {
         
     }
 
     if(Input.anyKeyDown)
         {
             Application.LoadLevel("1"); 
         }
 
 }
 

Thank You