diff --git a/lib/fast_jsonapi/object_serializer.rb b/lib/fast_jsonapi/object_serializer.rb
index 735fdb8..2f5ebe4 100644
--- a/lib/fast_jsonapi/object_serializer.rb
+++ b/lib/fast_jsonapi/object_serializer.rb
@@ -128,6 +128,10 @@ module FastJsonapi
         self.record_type = run_key_transform(type_name)
       end
 
+      def set_id(id_name)
+        self.record_id = id_name
+      end
+
       def cache_options(cache_options)
         self.cached = cache_options[:enabled] || false
         self.cache_length = cache_options[:cache_length] || 5.minutes