diff --git a/lib/searchkick/record_data.rb b/lib/searchkick/record_data.rb
index 94dda16..3fff356 100644
--- a/lib/searchkick/record_data.rb
+++ b/lib/searchkick/record_data.rb
@@ -25,6 +25,7 @@ module Searchkick
       {delete: record_data}
     end
 
+    # custom id useful for load: false
     def search_id
       id = record.respond_to?(:search_document_id) ? record.search_document_id : record.id
       id.is_a?(Numeric) ? id : id.to_s
--
libgit2 0.21.0