diff --git a/localization/autoware_localization_util/include/autoware/localization_util/tree_structured_parzen_estimator.hpp b/localization/autoware_localization_util/include/autoware/localization_util/tree_structured_parzen_estimator.hpp
index 485eed99..ddf7625c 100644
--- a/localization/autoware_localization_util/include/autoware/localization_util/tree_structured_parzen_estimator.hpp
+++ b/localization/autoware_localization_util/include/autoware/localization_util/tree_structured_parzen_estimator.hpp
@@ -26,7 +26,6 @@ Optuna is also used as a reference for implementation.
 
 #include <cstdint>
 #include <random>
-
 #include <vector>
 
 namespace autoware::localization_util