diff --git a/models/survey_user_input.py b/models/survey_user_input.py
index b6179d9287368ecf390c7f7c0a27801aa672c3ee..4e70ab2b4264a6a61c392c340977ce355223e5fc 100644
--- a/models/survey_user_input.py
+++ b/models/survey_user_input.py
@@ -1,6 +1,8 @@
 # Copyright 2019-2022 Le Filament (<https://le-filament.com>)
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
+from werkzeug.urls import url_join
+
 from odoo import Command, fields, models