diff --git a/src/backend/services/lotw.service.js b/src/backend/services/lotw.service.js
index 6da2f27..3318c1c 100644
--- a/src/backend/services/lotw.service.js
+++ b/src/backend/services/lotw.service.js
@@ -241,6 +241,7 @@ export async function syncQSOs(userId, lotwUsername, lotwPassword, sinceDate = n
             eq(qsos.userId, userId),
             eq(qsos.callsign, dbQSO.callsign),
             eq(qsos.qsoDate, dbQSO.qsoDate),
+            eq(qsos.timeOn, dbQSO.timeOn),
             eq(qsos.band, dbQSO.band),
             eq(qsos.mode, dbQSO.mode)
           )