diff --git a/charger/go-e/types2.go b/charger/go-e/types2.go
index 4b0d12c89..88c719c54 100644
--- a/charger/go-e/types2.go
+++ b/charger/go-e/types2.go
@@ -65,7 +65,7 @@ func (g *StatusResponse2) Voltages() (float64, float64, float64) {
 }
 
 func (g *StatusResponse2) Identify() string {
-	if g.Trx > 0 {
+	if g.Trx > 0 && len(g.Cards) >= g.Trx {
 		return g.Cards[g.Trx-1].Name
 	}