1 files changed, 2 insertions, 0 deletions
diff --git a/activerecord/lib/active_record/nested_attributes.rb b/activerecord/lib/active_record/nested_attributes.rb
index edcf547e01..ca3110a374 100644
--- a/activerecord/lib/active_record/nested_attributes.rb
+++ b/activerecord/lib/active_record/nested_attributes.rb
@@ -250,6 +250,8 @@ module ActiveRecord
                 assign_nested_attributes_for_#{type}_association(:#{association_name}, attributes)
               end
             }, __FILE__, __LINE__
+
+            add_autosave_association_callbacks(reflection)
           else
             raise ArgumentError, "No association found for name `#{association_name}'. Has it been defined yet?"
           end