diff --git a/server/database/user.ts b/server/database/user.ts
index aff3022..8a35039 100644
--- a/server/database/user.ts
+++ b/server/database/user.ts
@@ -18,6 +18,9 @@ export class UserTable {
         updated INTEGER
       );
     `).run()
+    await this.db.prepare(`
+      CREATE INDEX IF NOT EXISTS idx_user_id ON user(id);
+    `).run()
     logger.success(`init user table`)
   }