diff --git a/public/dates.html b/public/dates.html
index 16d542f3..38c12433 100644
--- a/public/dates.html
+++ b/public/dates.html
@@ -66,6 +66,7 @@
         <button class="remove btn-no-style"><i class="fas fa-trash-alt"></i></button>
       </li>
     </ul>
+    <button class="horaire-identique" style="display:none" id="addDateButton">Ajouter un horaire</button>
 
 
   </section>
diff --git a/public/script.js b/public/script.js
index ad90a9f5..f9647b9f 100644
--- a/public/script.js
+++ b/public/script.js
@@ -121,10 +121,14 @@ if($('#ajouterDesHoraires')) {
   ajouterDesHoraires.addEventListener('change', () => {
     if (ajouterDesHoraires.value == 'avec des') {
       identiquesDifferentsPourChaqueJour.style.display = 'inline'
-      $('.horaire-identique').style.display = 'inline'
+      $$('.horaire-identique').forEach((e) => {
+        e.style.display = 'inline'
+      });
     } else {
       identiquesDifferentsPourChaqueJour.style.display = 'none'
-      $('.horaire-identique').style.display = 'none'
+      $$('.horaire-identique').forEach((e) => {
+        e.style.display = 'none'
+      });
     }
   });
 }