error CS1525: Unexpected symbol `void'

Hey guys. I literally just started unity and have already run into an error. I'm trying to make it so you can skip a cut scene (by going to the next scene) by pressing space. Here is my code:

 using UnityEngine;
 
 public class ExampleClass : MonoBehaviour
          void Update()
          {
              if (Input.GetKeyDown(32))
              {
                  SceneManager.LoadScene("Patricks journey", LoadSceneMode.Additive);
              }
          }
      }