diff --git a/src/components/login.js b/src/components/login.js
index ddda1e18eea53d460a933243b0466a129cae1392..9a78b531fc1caf6f216842f05db9fe87a1271880 100644
--- a/src/components/login.js
+++ b/src/components/login.js
@@ -3,7 +3,7 @@ import React, { Component } from 'react';
 class Login extends Component{
     render(){
         return (
-            <button class="favorite styled" type="button">
+            <button className="favorite styled" type="button">
                 Se connecter
             </button>
         )
diff --git a/src/components/logout.js b/src/components/logout.js
index 3ab7c9a0eb8f9026abf9adf2d25657117e1bca1d..47e44e42a90811307aa51c358023603e401c90c2 100644
--- a/src/components/logout.js
+++ b/src/components/logout.js
@@ -3,7 +3,7 @@ import React, { Component } from 'react';
 class Logout extends Component{
     render(){
         return (
-            <button class="favorite styled" type="button">
+            <button className="favorite styled" type="button">
                 Se déconnecter
             </button>
         )
diff --git a/src/containers/list-annonces.js b/src/containers/list-annonces.js
index 1da85266965de55d512a3a13125e8bdbda1e209f..2590c0d374a7e92df61803e5b389e019c71fb47c 100644
--- a/src/containers/list-annonces.js
+++ b/src/containers/list-annonces.js
@@ -7,8 +7,8 @@ const ListAnnonce = () => {
         <div>
             <ul>
                 {
-                    annonces.map(annonce => {
-                    return <ListAnnonceItem annonce = {annonce}/>
+                    annonces.map((annonce, index) => {
+                    return <ListAnnonceItem key={index} annonce = {annonce}/>
                     })
                 }
             </ul>