diff --git a/scripts/upgrade b/scripts/upgrade
index d0a3753..4c7c21e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -95,7 +95,7 @@ fi
 ynh_script_progression --message="Upgrading nginx web server configuration..." --time --weight=1
 
 # Create a dedicated nginx config
-ynh_add_nginx_config
+ynh_add_nginx_config "websocket_port rocket_port"
 
 #=================================================
 # UPGRADE DEPENDENCIES