diff --git a/app/models/social_inbox.rb b/app/models/social_inbox.rb
index 21b0ca45..2f5e7eca 100644
--- a/app/models/social_inbox.rb
+++ b/app/models/social_inbox.rb
@@ -67,9 +67,12 @@ class SocialInbox
     end
   end
 
+  # El hostname puede estar en varios lados...
+  #
+  # @return [String]
   def hostname
     @hostname ||=
-      site.config.dig('activity_pub', 'hostname') || site.hostname
+      site.config.dig('activity_pub', 'hostname') || site.config['hostname'] || site.hostname
   end
 
   # Genera una URI dentro de este sitio