diff --git a/HowtoBitwarden.md b/HowtoBitwarden.md
index 4d8df10e..49b30cf6 100644
--- a/HowtoBitwarden.md
+++ b/HowtoBitwarden.md
@@ -29,4 +29,16 @@ On pourra éditer les fichier de configuration de base dans `bwdata/`. Par exemp
 
 ## upgrade
 
-<https://help.bitwarden.com/article/updating-on-premise/>
\ No newline at end of file
+<https://help.bitwarden.com/article/updating-on-premise/>
+
+## FAQ
+
+### erreur "host not found in upstream web"
+
+En cas d'erreur :
+
+~~~
+nginx: [emerg] host not found in upstream "web" in /etc/nginx/conf.d/default.conf:30
+~~~
+
+redémarrer `./bitwarden.sh restart`
\ No newline at end of file