diff --git a/assets/images/accueil_tuto2_avec_titre-it.png b/assets/images/accueil_tuto2_avec_titre-it.png
index 8ce4fc10bacb44d6e54d03dd1b64cac0736107a0..1654827b81775f226ad38f71c987a68874f84185 100644
Binary files a/assets/images/accueil_tuto2_avec_titre-it.png and b/assets/images/accueil_tuto2_avec_titre-it.png differ
diff --git a/assets/js/tuto1.js b/assets/js/tuto1.js
index e145d215729d2f3b1444f91c2f48ff65f9eb77e6..6a6e01c69ee8c7e6387a554573c1aec53af99eb7 100644
--- a/assets/js/tuto1.js
+++ b/assets/js/tuto1.js
@@ -31,7 +31,7 @@
     // Lang : ecrit dans le index.php via PHP
     let lang = $application.attr('data-lang');
     // Lang file extension used for subtitles
-    let langExt = lang && lang === 'fr' ? '':'-en';
+    let langExt = lang && lang === 'fr' ? '':`-${lang}`;
 
     // Chemins
     let dataFolder = baseURL + "/data";
diff --git a/assets/js/tuto2.js b/assets/js/tuto2.js
index 100dbcb95356350e4e5654485d91289a8e1856fc..bc4a85358704daebe4fb3f8183f11a2c021bbfc7 100644
--- a/assets/js/tuto2.js
+++ b/assets/js/tuto2.js
@@ -31,7 +31,7 @@
     // Lang : ecrit dans le index.php via PHP
     let lang = $application.attr('data-lang');
     // Lang file extension used for subtitles
-    let langExt = lang && lang === 'fr' ? '':'-en';
+    let langExt = lang && lang === 'fr' ? '':`-${lang}`;
 
     // Chemins
     let dataFolder = baseURL + "/data";
diff --git a/assets/js/tuto3-1.js b/assets/js/tuto3-1.js
index 6a087573f060f737dafb031a42911b4af3c63e20..fb7198eff2344c8a96ab059c8b9375cced2517ea 100644
--- a/assets/js/tuto3-1.js
+++ b/assets/js/tuto3-1.js
@@ -28,7 +28,7 @@
     // Lang : ecrit dans le index.php via PHP
     let lang = $application.attr('data-lang');
     // Lang file extension used for subtitles
-    let langExt = lang && lang === 'fr' ? '':'-en';
+    let langExt = lang && lang === 'fr' ? '':`-${lang}`;
 
     // Chemins
     let dataFolder = baseURL + "/data";
diff --git a/assets/js/tuto3-2.js b/assets/js/tuto3-2.js
index 5dc6f65db3e09a62af15854cbd4aef9732ae03c5..d9305ffc01a5f12280276d4c45e1389b3c8ce401 100644
--- a/assets/js/tuto3-2.js
+++ b/assets/js/tuto3-2.js
@@ -28,7 +28,7 @@
     // Lang : ecrit dans le index.php via PHP
     let lang = $application.attr('data-lang');
     // Lang file extension used for subtitles
-    let langExt = lang && lang === 'fr' ? '':'-en';
+    let langExt = lang && lang === 'fr' ? '':`-${lang}`;
 
     // Chemins
     let dataFolder = baseURL + "/data";
diff --git a/assets/js/tuto3-3.js b/assets/js/tuto3-3.js
index 8fcaa7bdb9bb44911e6c61b984347f1ed90a89d3..cfd3072296206c5b5bfebb19ea40aad0006a7568 100644
--- a/assets/js/tuto3-3.js
+++ b/assets/js/tuto3-3.js
@@ -28,7 +28,7 @@
     // Lang : ecrit dans le index.php via PHP
     let lang = $application.attr('data-lang');
     // Lang file extension used for subtitles
-    let langExt = lang && lang === 'fr' ? '':'-en';
+    let langExt = lang && lang === 'fr' ? '':`-${lang}`;
 
     // Chemins
     let dataFolder = baseURL + "/data";
diff --git a/assets/js/tuto3-4.js b/assets/js/tuto3-4.js
index 8c5f6453bd45040aba1024cbf804e5c48b932683..ba27041e643039bbdfd62107e8f0a73a0d5d86c1 100644
--- a/assets/js/tuto3-4.js
+++ b/assets/js/tuto3-4.js
@@ -28,7 +28,7 @@
     // Lang : ecrit dans le index.php via PHP
     let lang = $application.attr('data-lang');
     // Lang file extension used for subtitles
-    let langExt = lang && lang === 'fr' ? '':'-en';
+    let langExt = lang && lang === 'fr' ? '':`-${lang}`;
 
     // Chemins
     let dataFolder = baseURL + "/data";
diff --git a/assets/js/tuto3-ai4t.js b/assets/js/tuto3-ai4t.js
index 04aa045854d66eda2375e5d5da23626a2a6cd4c0..04fb64974abd25d61200646332550e85876f5318 100644
--- a/assets/js/tuto3-ai4t.js
+++ b/assets/js/tuto3-ai4t.js
@@ -28,7 +28,7 @@
     // Lang : ecrit dans le index.php via PHP
     let lang = $application.attr('data-lang');
     // Lang file extension used for subtitles
-    let langExt = lang && lang === 'fr' ? '':'-en';
+    let langExt = lang && lang === 'fr' ? '':`-${lang}`;
 
     // Chemins
     let dataFolder = baseURL + "/data";
diff --git a/assets/js/tuto3.js b/assets/js/tuto3.js
index dc880582d842d8aff655cd802973a3ce01398353..e1cf03b3734f07d5a371d96df03f3a17219940ec 100644
--- a/assets/js/tuto3.js
+++ b/assets/js/tuto3.js
@@ -28,7 +28,7 @@
     // Lang : ecrit dans le index.php via PHP
     let lang = $application.attr('data-lang');
     // Lang file extension used for subtitles
-    let langExt = lang && lang === 'fr' ? '':'-en';
+    let langExt = lang && lang === 'fr' ? '':`-${lang}`;
 
     // Chemins
     let dataFolder = baseURL + "/data";
diff --git a/data/tuto2/translations/it.json b/data/tuto2/translations/it.json
index 51949195ed1340485d37f7b5dccc769ed7690de3..f412e1096ddab39e71e2ccf2635c6cbd8820af5a 100644
--- a/data/tuto2/translations/it.json
+++ b/data/tuto2/translations/it.json
@@ -29,7 +29,7 @@
         "Entraîner": "Formazione",
         "Avons-nous correctement entraîné notre programme ? Que voit-il ? Pourquoi ?": "Abbiamo allenato correttamente il nostro programma? Cosa vede? Perché lo vede?",
         "Sélectionner une image dans la Bibliothèque et la tester. Répéter l’opération autant de fois que désiré puis cliquer sur ": "Seleziona un'immagine nella Libreria e testala. Ripetete l'operazione quante volte volete e cliccate su ",
-        "Suite": "Seguente",
+        "Suite": "Avanti",
         "Jeu de données": "Set di dati",
         "Expérimenter 2/3": "Sperimentare 2/3",
         "Des biais dans les jeux de données !": "Bias nelle serie di dati!",