diff --git a/app/models/post.rb b/app/models/post.rb
index d18f18a3..b099444d 100644
--- a/app/models/post.rb
+++ b/app/models/post.rb
@@ -22,7 +22,7 @@ class Post
   # datos que no tienen que terminar en el front matter
   REJECT_FROM_FRONT_MATTER = %w[date slug ext].freeze
   # datos que no traemos del template
-  REJECT_FROM_TEMPLATE = %w[draft categories layout title ext tags date slug].freeze
+  REJECT_FROM_TEMPLATE = %w[draft categories layout title ext tags date slug post pre].freeze
   DEFAULT_PARAMS = [:title, :date, :content, :slug, :cover,
       :layout, :permalink, :dir,
       { lang: {} }, { tags: [] }, { categories: [] }]
diff --git a/app/views/posts/_form.haml b/app/views/posts/_form.haml
index f9c3b1ba..b2270c7c 100644
--- a/app/views/posts/_form.haml
+++ b/app/views/posts/_form.haml
@@ -17,6 +17,8 @@
 - else
   - url = site_post_path(@site, @post, lang: @lang)
   - method = :patch
+- if pre = @post.template.get_front_matter('pre')
+  = render 'layouts/help', help: CommonMarker.render_doc(pre).to_html
 = form_tag url, method: method, class: 'form', novalidate: true, multipart: true do
   = hidden_field_tag 'template', params[:template]
   .form-group
@@ -123,3 +125,5 @@
       .invalid-feedback= t('posts.invalid')
   .form-group
     = submit_tag t('posts.save'), class: 'btn btn-success submit-post'
+- if post = @post.template.get_front_matter('post')
+  = render 'layouts/help', help: CommonMarker.render_doc(post).to_html