diff --git a/optuna_dashboard/__init__.py b/optuna_dashboard/__init__.py
index 604afa89..45d519a3 100644
--- a/optuna_dashboard/__init__.py
+++ b/optuna_dashboard/__init__.py
@@ -2,11 +2,11 @@ from ._app import run_server  # noqa
 from ._app import wsgi  # noqa
 from ._named_objectives import set_objective_names  # noqa
 from ._note import save_note  # noqa
-from ._objective_form_widget import register_objective_form_widgets  # noqa
 from ._objective_form_widget import ObjectiveChoiceWidget  # noqa
 from ._objective_form_widget import ObjectiveSliderWidget  # noqa
 from ._objective_form_widget import ObjectiveTextInputWidget  # noqa
 from ._objective_form_widget import ObjectiveUserAttrRef  # noqa
+from ._objective_form_widget import register_objective_form_widgets  # noqa
 
 
 __version__ = "0.9.0b2"