diff --git a/app/models/metadata_related_posts.rb b/app/models/metadata_related_posts.rb
index 50b8660e..a9aaaa21 100644
--- a/app/models/metadata_related_posts.rb
+++ b/app/models/metadata_related_posts.rb
@@ -34,14 +34,14 @@ class MetadataRelatedPosts < MetadataArray
   #
   # @return [IndexedPost::ActiveRecord_AssociationRelation]
   def posts
-    site.indexed_posts.where(locale: locale).where.not(post_id: post.uuid.value).where(**filter)
+    site.indexed_posts.where(locale: locale).where.not(post_id: post.uuid.value).where(filter)
   end
 
   # Encuentra el filtro desde el esquema del atributo
   #
-  # @return [Hash]
+  # @return [Hash,nil]
   def filter
-    layout.metadata.dig(name, 'filter')&.to_h&.symbolize_keys || {}
+    layout.metadata.dig(name, 'filter')&.to_h&.symbolize_keys
   end
 
   def sanitize(uuid)