diff --git a/DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs b/DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs
index 3c547b21..23cae5d2 100644
--- a/DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs
+++ b/DnsServerCore/Dns/ZoneManagers/AuthZoneManager.cs
@@ -362,6 +362,12 @@ namespace DnsServerCore.Dns.ZoneManagers
             if (delegationZone is StubZone)
             {
                 authority = delegationZone.GetRecords(DnsResourceRecordType.NS); //stub zone has no authority so cant query
+
+                //update last used on
+                DateTime utcNow = DateTime.UtcNow;
+
+                foreach (DnsResourceRecord record in authority)
+                    record.GetRecordInfo().LastUsedOn = utcNow;
             }
             else
             {