1 files changed, 10 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/attribute_methods/serialization.rb b/activerecord/lib/active_record/attribute_methods/serialization.rb
index 3227464032..67abbbc2a0 100644
--- a/activerecord/lib/active_record/attribute_methods/serialization.rb
+++ b/activerecord/lib/active_record/attribute_methods/serialization.rb
@@ -164,6 +164,16 @@ module ActiveRecord
             super
           end
         end
+
+        def attributes_for_coder
+          attribute_names.each_with_object({}) do |name, attrs|
+            attrs[name] = if self.class.serialized_attributes.include?(name)
+                            @attributes[name].serialized_value
+                          else
+                            read_attribute(name)
+                          end
+          end
+        end
       end
     end
   end