diff --git a/internal/cmd_channel_export.go b/internal/cmd_channel_export.go
index 5751db5..76fcea2 100644
--- a/internal/cmd_channel_export.go
+++ b/internal/cmd_channel_export.go
@@ -45,7 +45,16 @@ func channelExportCmd(ctx context.Context) error {
 	logger.Info("get remote channel info", zap.Int64("uuid", cfg.UUID), zap.String("title", cfg.Title))
 	channel, err := client.ChannelInfoByID(ctx, cfg.UUID)
 	if err != nil {
-		return err
+		logger.Error("get channel by id failed", zap.Int64("id", cfg.UUID), zap.String("title", cfg.Title))
+		if cfg.Username != "" {
+			channel, err = client.ChannelInfoByAlias(ctx, cfg.Username)
+			if err != nil {
+				logger.Error("get channel by username failed", zap.String("username", cfg.Username), zap.String("title", cfg.Title))
+				return err
+			}
+		} else {
+			return err
+		}
 	}
 
 	logger.Info("exporting history msg", zap.Int64("uuid", cfg.UUID))