diff --git a/app/assets/javascripts/validation.js b/app/assets/javascripts/validation.js
index f05854f..5a48148 100644
--- a/app/assets/javascripts/validation.js
+++ b/app/assets/javascripts/validation.js
@@ -1,11 +1,10 @@
 document.addEventListener('turbolinks:load', () => {
   // Al enviar el formulario del artículo, aplicar la validación
   // localmente y actualizar los comentarios para lectores de pantalla.
-  document.querySelectorAll('.submit-post').forEach(submit => {
-    submit.addEventListener('click', event => {
-      const form = submit.closest('form')
-      const invalid_help = form.querySelectorAll('.invalid_help')
-      const sending_help = form.querySelectorAll('.sending_help')
+  document.querySelectorAll('form').forEach(form => {
+    form.addEventListener('submit', event => {
+      const invalid_help = form.querySelectorAll('.invalid-help')
+      const sending_help = form.querySelectorAll('.sending-help')
 
       invalid_help.forEach(i => i.classList.add('d-none'))
       sending_help.forEach(i => i.classList.add('d-none'))
diff --git a/app/views/posts/_submit.haml b/app/views/posts/_submit.haml
index b3879fd..b21b5ff 100644
--- a/app/views/posts/_submit.haml
+++ b/app/views/posts/_submit.haml
@@ -1,6 +1,6 @@
 .form-group
   = submit_tag t('.save'), class: 'btn submit-post'
-  .invalid_help.alert.alert-danger.d-none
+  .invalid-help.alert.alert-danger.d-none
     = site.config.fetch('invalid_help', t('.invalid_help'))
-  .sending_help.alert.alert-success.d-none
+  .sending-help.alert.alert-success.d-none
     = site.config.fetch('sending_help', t('.sending_help'))