diff --git a/lib/schemable/configuration.rb b/lib/schemable/configuration.rb
index c302e68..6a9a3e4 100644
--- a/lib/schemable/configuration.rb
+++ b/lib/schemable/configuration.rb
@@ -8,6 +8,7 @@ module Schemable
       :decimal_as_string,
       :custom_type_mappers,
       :disable_factory_bot,
+      :use_serialized_instance,
       :custom_defined_enum_method
     )
 
@@ -19,6 +20,7 @@ module Schemable
       @decimal_as_string = false
       @disable_factory_bot = true
       @custom_defined_enum_method = nil
+      @use_serialized_instance = false
     end
 
     def type_mapper(type_name)
diff --git a/sig/schemable/configuration.rbs b/sig/schemable/configuration.rbs
index 46a73e7..bef6c84 100644
--- a/sig/schemable/configuration.rbs
+++ b/sig/schemable/configuration.rbs
@@ -5,9 +5,11 @@ module Schemable
     attr_accessor float_as_string: bool
     attr_accessor decimal_as_string: bool
     attr_accessor disable_factory_bot: bool
+    attr_accessor use_serialized_instance: bool
     attr_accessor custom_defined_enum_method: Symbol?
     attr_accessor custom_type_mappers: Hash[Symbol, any]
 
+
     def initialize: -> void
 
     def add_custom_type_mapper: (Symbol, Hash[Symbol, any]) -> void