diff --git a/plugins/union_pay_cpn/internal/transform.go b/plugins/union_pay_cpn/internal/transform.go
index a8c27de..8f605a3 100644
--- a/plugins/union_pay_cpn/internal/transform.go
+++ b/plugins/union_pay_cpn/internal/transform.go
@@ -26,8 +26,7 @@ type Config struct {
 
 func transConfig(config []byte) (*Config, error) {
 	var c Config
-	err := json.Unmarshal(config, &c)
-	if err != nil {
+	if err := json.Unmarshal(config, &c); err != nil {
 		return nil, proto.ErrorConfigFail(fmt.Sprintf("配置参数有误:%s", err.Error()))
 	}
 	return &c, nil