1 files changed, 2 insertions, 4 deletions
diff --git a/activerecord/lib/active_record/type/serialized.rb b/activerecord/lib/active_record/type/serialized.rb
index e6d84eadc0..ebde14634c 100644
--- a/activerecord/lib/active_record/type/serialized.rb
+++ b/activerecord/lib/active_record/type/serialized.rb
@@ -1,6 +1,8 @@
 module ActiveRecord
   module Type
     class Serialized < SimpleDelegator # :nodoc:
+      include Mutable
+
       attr_reader :subtype, :coder
 
       def initialize(subtype, coder)
@@ -17,10 +19,6 @@ module ActiveRecord
         end
       end
 
-      def type_cast_from_user(value)
-        type_cast_from_database(type_cast_for_database(value))
-      end
-
       def type_cast_for_database(value)
         return if value.nil?
         unless is_default_value?(value)