diff --git a/dtmsvr/cron.go b/dtmsvr/cron.go
index 1001476..671df25 100644
--- a/dtmsvr/cron.go
+++ b/dtmsvr/cron.go
@@ -83,6 +83,6 @@ func handlePanic(perr *error) {
 func sleepCronTime() {
 	normal := time.Duration((float64(conf.TransCronInterval) - rand.Float64()) * float64(time.Second))
 	interval := dtmimp.If(CronForwardDuration > 0, 1*time.Millisecond, normal).(time.Duration)
-	logger.Debugf("sleeping for %v milli", interval/time.Microsecond)
+	logger.Debugf("sleeping for %v", interval)
 	time.Sleep(interval)
 }