diff --git a/delivery_roulier/README.rst b/delivery_roulier/README.rst
index 2e2383a783..29d5635c88 100644
--- a/delivery_roulier/README.rst
+++ b/delivery_roulier/README.rst
@@ -124,6 +124,7 @@ Contributors
 
 -  Raphaël Reverdy <sebastien.beau@akretion.com>
 -  David Béal <david.beal@akretion.com>
+-  Italo LOPES <italo.lopes@camptocamp.com>
 
 Maintainers
 -----------
diff --git a/delivery_roulier/models/delivery_carrier.py b/delivery_roulier/models/delivery_carrier.py
index 7402ded8b3..cf96145ce8 100644
--- a/delivery_roulier/models/delivery_carrier.py
+++ b/delivery_roulier/models/delivery_carrier.py
@@ -44,10 +44,11 @@ def rate_shipment(self, order):
         res = super().rate_shipment(order)
         # for roulier carrier, usually getting the price by carrier webservice
         # is usually not available for now. Avoid failure in that case.
-        if not res and self.is_roulier():
+        if not res and self._is_roulier():
             res = {
                 "success": True,
                 "price": 0.0,
+                "carrier_price": 0.0,
                 "error_message": False,
                 "warning_message": False,
             }
diff --git a/delivery_roulier/readme/CONTRIBUTORS.md b/delivery_roulier/readme/CONTRIBUTORS.md
index 74878ac5dd..2735fae7c1 100644
--- a/delivery_roulier/readme/CONTRIBUTORS.md
+++ b/delivery_roulier/readme/CONTRIBUTORS.md
@@ -1,2 +1,3 @@
 - Raphaël Reverdy \<<sebastien.beau@akretion.com>\>
 - David Béal \<<david.beal@akretion.com>\>
+- Italo LOPES \<<italo.lopes@camptocamp.com>\>
diff --git a/delivery_roulier/static/description/index.html b/delivery_roulier/static/description/index.html
index afb896d451..c975634a84 100644
--- a/delivery_roulier/static/description/index.html
+++ b/delivery_roulier/static/description/index.html
@@ -8,11 +8,10 @@
 
 /*
 :Author: David Goodger (goodger@python.org)
-:Id: $Id: html4css1.css 9511 2024-01-13 09:50:07Z milde $
+:Id: $Id: html4css1.css 8954 2022-01-20 10:10:25Z milde $
 :Copyright: This stylesheet has been placed in the public domain.
 
 Default cascading style sheet for the HTML output of Docutils.
-Despite the name, some widely supported CSS2 features are used.
 
 See https://docutils.sourceforge.io/docs/howto/html-stylesheets.html for how to
 customize this style sheet.
@@ -275,7 +274,7 @@
   margin-left: 2em ;
   margin-right: 2em }
 
-pre.code .ln { color: gray; } /* line numbers */
+pre.code .ln { color: grey; } /* line numbers */
 pre.code, code { background-color: #eeeeee }
 pre.code .comment, code .comment { color: #5C6576 }
 pre.code .keyword, code .keyword { color: #3B0D06; font-weight: bold }
@@ -301,7 +300,7 @@
 span.pre {
   white-space: pre }
 
-span.problematic, pre.problematic {
+span.problematic {
   color: red }
 
 span.section-subtitle {
@@ -465,14 +464,13 @@ <h2><a class="toc-backref" href="#toc-entry-6">Contributors</a></h2>
 <ul class="simple">
 <li>Raphaël Reverdy &lt;<a class="reference external" href="mailto:sebastien.beau&#64;akretion.com">sebastien.beau&#64;akretion.com</a>&gt;</li>
 <li>David Béal &lt;<a class="reference external" href="mailto:david.beal&#64;akretion.com">david.beal&#64;akretion.com</a>&gt;</li>
+<li>Italo LOPES &lt;<a class="reference external" href="mailto:italo.lopes&#64;camptocamp.com">italo.lopes&#64;camptocamp.com</a>&gt;</li>
 </ul>
 </div>
 <div class="section" id="maintainers">
 <h2><a class="toc-backref" href="#toc-entry-7">Maintainers</a></h2>
 <p>This module is maintained by the OCA.</p>
-<a class="reference external image-reference" href="https://odoo-community.org">
-<img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" />
-</a>
+<a class="reference external image-reference" href="https://odoo-community.org"><img alt="Odoo Community Association" src="https://odoo-community.org/logo.png" /></a>
 <p>OCA, or the Odoo Community Association, is a nonprofit organization whose
 mission is to support the collaborative development of Odoo features and
 promote its widespread use.</p>