diff --git a/internal/db/models/stats/server_domain_hourly_stat_dao.go b/internal/db/models/stats/server_domain_hourly_stat_dao.go
index 2a2f7b5c..c94ee084 100644
--- a/internal/db/models/stats/server_domain_hourly_stat_dao.go
+++ b/internal/db/models/stats/server_domain_hourly_stat_dao.go
@@ -83,7 +83,7 @@ func (this *ServerDomainHourlyStatDAO) IncreaseHourlyStat(tx *dbs.Tx, clusterId
 	if len(hour) != 10 {
 		return errors.New("invalid hour '" + hour + "'")
 	}
-	if len(domain) == 0 {
+	if len(domain) == 0 || len(domain) > 64 {
 		return nil
 	}
 	err := this.Query(tx).