diff --git a/sdk/request/request.go b/sdk/request/request.go
index 716025b..fb27e06 100644
--- a/sdk/request/request.go
+++ b/sdk/request/request.go
@@ -12,4 +12,6 @@ type AcsRequest interface {
 type baseRequest struct {
 	Scheme string
 	Method string
+	Host   string
+	Domain string
 }