diff --git a/cron/TripsWorker.js b/cron/TripsWorker.js
index 3bfb753..8499008 100644
--- a/cron/TripsWorker.js
+++ b/cron/TripsWorker.js
@@ -228,7 +228,7 @@ async function tripGrouping() {
 						v.nopol1,
 						vhc_id,
 						ROW_NUMBER() OVER (PARTITION BY v.id ORDER BY MIN(a.crt_d)) AS trip_id,
-						SUM(pre_milleage) AS mileage,
+						max(a.vhc_milleage) - min(a.vhc_milleage) AS mileage,
 						MIN(a.crt_d) AS start,
 						MAX(a.crt_d) AS finish,
 						MIN(a.vhc_milleage) AS startMileage,