diff --git a/dtmcli/dtmimp/trans_xa_base.go b/dtmcli/dtmimp/trans_xa_base.go
index 28f92a7..591aaf4 100644
--- a/dtmcli/dtmimp/trans_xa_base.go
+++ b/dtmcli/dtmimp/trans_xa_base.go
@@ -18,7 +18,7 @@ type XaClientBase struct {
 	NotifyURL string
 }
 
-// HandleCallback type of commit/rollback callback handler
+// HandleCallback Handle the callback of commit/rollback
 func (xc *XaClientBase) HandleCallback(gid string, branchID string, action string) error {
 	db, err := StandaloneDB(xc.Conf)
 	if err != nil {
diff --git a/main.go b/main.go
index e7b81b3..f915944 100644
--- a/main.go
+++ b/main.go
@@ -58,7 +58,7 @@ func main() {
 		return
 	}
 	config.MustLoadConfig(*confFile)
-	conf := config.Config
+	conf := &config.Config
 	if *isDebug {
 		conf.LogLevel = "debug"
 	}