diff --git a/aliyun-net-sdk-core/Auth/Sts/AssumeRoleResponseUnmarshaller.cs b/aliyun-net-sdk-core/Auth/Sts/AssumeRoleResponseUnmarshaller.cs
index b05f8aa0f5..d680a22ced 100644
--- a/aliyun-net-sdk-core/Auth/Sts/AssumeRoleResponseUnmarshaller.cs
+++ b/aliyun-net-sdk-core/Auth/Sts/AssumeRoleResponseUnmarshaller.cs
@@ -27,6 +27,7 @@ public static AssumeRoleResponse Unmarshall(UnmarshallerContext context)
         {
             var assumeRoleResponse = new AssumeRoleResponse();
 
+            assumeRoleResponse.HttpResponse = context.HttpResponse;
             assumeRoleResponse.RequestId = context.StringValue("AssumeRole.RequestId");
 
             var credentials = new AssumeRoleResponse.AssumeRole_Credentials();