diff --git a/app/views/posts/_form.haml b/app/views/posts/_form.haml
index e7bd0a4a..734f3bfb 100644
--- a/app/views/posts/_form.haml
+++ b/app/views/posts/_form.haml
@@ -78,7 +78,7 @@
   .form-group
     = label_tag 'post_recomendaciones', t('posts.recomendaciones')
     = text_area 'post', 'recomendaciones', value: @post.get_front_matter(:recomendaciones),
-      class: 'form-control'
+      class: field_class
     %small.text-muted.form-text= t('posts.recomendaciones_help')
   .form-group
     = label_tag 'post_duracion', t('posts.duracion')