problem with the joystick

Hello everybody I have a problem with my controller. If I push the joystick left, the object goes to the right,
what am I doing wrong?

Code (CSharp):

1. using System.Collections;
2. using System.Collections.Generic;
3. using UnityEngine;
4.  
5. public class PlayerController : MonoBehaviour
6. {
7.  
8.     public float speed = 200;
9.  
10.     public Joystick joystick;
11.     private Rigidbody2D rb;
12.     private Vector2 moveVelocity;
13.  
14.  
15.  
16.     private void Start()
17.     {
18.         rb = GetComponent<Rigidbody2D>();
19.     }
20.  
21.  
22.     private void Update()
23.     {
24.  
25.         Vector2 moveInput = new Vector2(joystick.Horizontal, joystick.Vertical);
26.         moveVelocity = moveInput.normalized * speed;
27.  
28.     }
29.  
30.  
31.     void FixedUpdate()
32.     {
33.         rb.MovePosition(rb.position + moveVelocity * Time.deltaTime);
34.     }
35.  
36.  
37. }