The name 'CusorLockMode' does not exist in the current context

Forgive me because this is my first Unity project, but I get this error with this code.

The name 'CusorLockMode' does not exist in the current context

 using System.Collections;
 using System.Collections.Generic;
 using UnityEngine;
 
 public class NewBehaviourScript : MonoBehaviour
 {
     // Start is called before the first frame update
     void Start()
     {
         Cursor.lockState = CusorLockMode.Locked;
     }
 
     // Update is called once per frame
     void Update()
     {
         
     }
 }
 
 

Any help would be great!