diff --git a/charger/ocpp/cp_core.go b/charger/ocpp/cp_core.go
index 0fd49d128..2d93a5761 100644
--- a/charger/ocpp/cp_core.go
+++ b/charger/ocpp/cp_core.go
@@ -16,7 +16,7 @@ var (
 func (cp *CP) OnBootNotification(request *core.BootNotificationRequest) (*core.BootNotificationConfirmation, error) {
 	res := &core.BootNotificationConfirmation{
 		CurrentTime: types.Now(),
-		Interval:    60,
+		Interval:    int(Timeout.Seconds()),
 		Status:      core.RegistrationStatusAccepted,
 	}
 
diff --git a/charger/ocpp/cs_core.go b/charger/ocpp/cs_core.go
index 35c526481..f6b1366a5 100644
--- a/charger/ocpp/cs_core.go
+++ b/charger/ocpp/cs_core.go
@@ -26,7 +26,7 @@ func (cs *CS) OnBootNotification(id string, request *core.BootNotificationReques
 
 	res := &core.BootNotificationConfirmation{
 		CurrentTime: types.Now(),
-		Interval:    60,
+		Interval:    int(Timeout.Seconds()),
 		Status:      core.RegistrationStatusPending, // not accepted during startup
 	}