diff --git a/internal/service/script.go b/internal/service/script.go
index 1596013..a661ee0 100644
--- a/internal/service/script.go
+++ b/internal/service/script.go
@@ -78,7 +78,7 @@ func (this *CmbService) QueryOrder(ctx http.Context) error {
 		return err
 	}
 
-	ctx.Header().Set("Content-Type", "text/html; charset=utf-8")
+	ctx.Response().Header().Add("Content-Type", "text/html; charset=utf-8")
 	return ctx.String(http2.StatusOK, str)
 }