--- a/doc/bms-ch8.sgml	Thu Oct 12 15:24:56 2023 +0200
+++ b/doc/bms-ch8.sgml	Tue Oct 17 11:54:38 2023 +0200
@@ -100,7 +100,6 @@
 <programlisting>
 {
   "timestamp": 1532201089,
-  "sec": 1234,
   "metric": {
     "uuid": "b508f01c-1f82-4e8b-b0d2-d88ecfb53031",
     "interval":300,