diff --git a/index.html b/index.html
index e70e9c7..b2db7ee 100644
--- a/index.html
+++ b/index.html
@@ -125,55 +125,54 @@ body > main {
             const langue = document.documentElement.lang;
 
             let voix = null;
-            if ('speechSynthesis' in window) {
-                speechSynthesis.onvoiceschanged = function() {
-                    let liste_voix = speechSynthesis.getVoices().filter(voice => voice.lang.startsWith(langue));
-                    select_voix.innerHTML = aphone;
-                    
-                    if (!liste_voix.length) {
-                        bouton_synthese_vocale.style.display = 'none';
-                        return;
-                    }
-                    
-                    liste_voix.forEach((v, i) => {
-                        const option = document.createElement('option');
-                        option.value = i;
-                        option.innerText = v.name;
-                        select_voix.appendChild(option);
-                        if (v.voiceURI === window.localStorage.getItem('voix')) {
-                            select_voix.value = i;
-                            voix = v;
-                            option.selected = true;
-                            bouton_synthese_vocale.innerHTML = "🕪";
-                        }
-                    })
+            function charger_voix() {
+                let liste_voix = speechSynthesis.getVoices().filter(voice => voice.lang.startsWith(langue));
+                select_voix.innerHTML = aphone;
                 
-                    bouton_synthese_vocale.style.display = 'block';
-                    bouton_synthese_vocale.addEventListener('click', () => {
-                        boite_synthese_vocale.showModal();
-                    });
-                    bouton_fermer.addEventListener('click', () => {
-                        boite_synthese_vocale.close();
-                    });
-                    bouton_annuler.addEventListener('click', () => {
-                        boite_synthese_vocale.close();
-                    });
-                    bouton_ok.addEventListener('click', () => {
-                        boite_synthese_vocale.close();
-                        if (select_voix.value) {
-                            voix = liste_voix[select_voix.value];
-                            window.localStorage.setItem('voix', voix.voiceURI);
-                            bouton_synthese_vocale.innerHTML = "🕪";
-                        } else {
-                            voix = null;
-                            window.localStorage.removeItem('voix');
-                            bouton_synthese_vocale.innerHTML = "🕨";
-                        }
-                    });
+                if (!liste_voix.length) {
+                    bouton_synthese_vocale.style.display = 'none';
+                    speechSynthesis.addEventListener('voiceschanged', charger_voix);
+                    return;
                 }
 
-                speechSynthesis.onvoiceschanged()
+                speechSynthesis.removeEventListener('voiceschanged', charger_voix);
+                liste_voix.forEach((v, i) => {
+                    const option = document.createElement('option');
+                    option.value = i;
+                    option.innerText = v.name;
+                    select_voix.appendChild(option);
+                    if (v.voiceURI === window.localStorage.getItem('voix')) {
+                        select_voix.value = i;
+                        voix = v;
+                        option.selected = true;
+                        bouton_synthese_vocale.innerHTML = "🕪";
+                    }
+                })
+            
+                bouton_synthese_vocale.style.display = 'block';
+                bouton_synthese_vocale.addEventListener('click', () => {
+                    boite_synthese_vocale.showModal();
+                });
+                bouton_fermer.addEventListener('click', () => {
+                    boite_synthese_vocale.close();
+                });
+                bouton_annuler.addEventListener('click', () => {
+                    boite_synthese_vocale.close();
+                });
+                bouton_ok.addEventListener('click', () => {
+                    boite_synthese_vocale.close();
+                    if (select_voix.value) {
+                        voix = liste_voix[select_voix.value];
+                        window.localStorage.setItem('voix', voix.voiceURI);
+                        bouton_synthese_vocale.innerHTML = "🕪";
+                    } else {
+                        voix = null;
+                        window.localStorage.removeItem('voix');
+                        bouton_synthese_vocale.innerHTML = "🕨";
+                    }
+                });
             }
+            if ('speechSynthesis' in window) charger_voix();
 
             question.addEventListener('keydown', e => {
                 if (e.key === 'Enter' && !e.ctrlKey && !e.shiftKey) {