diff --git a/cours/source/conf.py b/cours/source/conf.py
index 09f969a..0bebdae 100644
--- a/cours/source/conf.py
+++ b/cours/source/conf.py
@@ -15,6 +15,7 @@ extensions = [
 
 notfound_context = {
     "title": "Page non trouvée",
+    "body": "<h1>Page non trouvée<h1>",
 }
 notfound_urls_prefix = "/python/"