diff --git a/service/lotusclient/lotusclient.go b/service/lotusclient/lotusclient.go
index 289793f..a1afbe3 100644
--- a/service/lotusclient/lotusclient.go
+++ b/service/lotusclient/lotusclient.go
@@ -130,6 +130,7 @@ func newBuilder(maddrs string, authToken string, connRetries int) (clientBuilder
 			}
 			closer, err = jsonrpc.NewMergeClient(context.Background(), "ws://"+addr+"/rpc/v0", "Filecoin",
 				[]interface{}{
+					&api.CommonStruct.Internal,
 					&api.Internal,
 				}, headers)
 			if err == nil {