diff --git a/optuna_dashboard/ts/action.ts b/optuna_dashboard/ts/action.ts
index e6b99f2a..b9fb6a61 100644
--- a/optuna_dashboard/ts/action.ts
+++ b/optuna_dashboard/ts/action.ts
@@ -9,6 +9,7 @@ import {
   saveStudyNoteAPI,
   saveTrialNoteAPI,
   tellTrialAPI,
+  saveTrialUserAttrsAPI,
   renameStudyAPI,
   uploadArtifactAPI,
   getMetaInfoAPI,