diff --git a/api/api.go b/api/api.go
index 67dc3ccdd..4d5029225 100644
--- a/api/api.go
+++ b/api/api.go
@@ -9,7 +9,7 @@ import (
 	"time"
 )
 
-//go:generate mockgen -package api -destination api.go github.com/evcc-io/evcc/api Charger,ChargeState,PhaseSwitcher,Identifier,Meter,MeterEnergy,Vehicle,ChargeRater,Battery,Tariff
+//go:generate mockgen -package api -destination mock.go github.com/evcc-io/evcc/api Charger,ChargeState,PhaseSwitcher,Identifier,Meter,MeterEnergy,Vehicle,ChargeRater,Battery,Tariff
 
 // ChargeMode is the charge operation mode. Valid values are off, now, minpv and pv
 type ChargeMode string