diff --git a/ha/ha.go b/ha/ha.go
index 32f25a9c..503dcdca 100644
--- a/ha/ha.go
+++ b/ha/ha.go
@@ -214,7 +214,7 @@ func (h *HA) checkResponsibility(env *Environment) {
 		return
 	}
 
-	if time.Now().Unix()-beat > 15*1000 {
+	if utils.TimeToMillisecs(time.Now())-beat > 15*1000 {
 		h.logger.Info("Taking over.")
 
 		// This means there was no instance row match, insert
diff --git a/ha/ha_test.go b/ha/ha_test.go
index a20fe369..72be9ec1 100644
--- a/ha/ha_test.go
+++ b/ha/ha_test.go
@@ -101,7 +101,7 @@ func TestHA_checkResponsibility(t *testing.T) {
 	_, err = ha.super.Dbw.SqlExec(
 		mysqlObservers.insertIntoIcingadbInstance,
 		"INSERT INTO icingadb_instance(id, environment_id, heartbeat, responsible, icinga2_version, icinga2_start_time) VALUES (?, ?, ?, 'y', '', 0)",
-		ha.uid[:], ha.super.EnvId, time.Now().Unix(),
+		ha.uid[:], ha.super.EnvId, utils.TimeToMillisecs(time.Now()),
 	)
 
 	ha.isActive = false