diff --git a/service/native/TrafficController.cpp b/service/native/TrafficController.cpp
index 1cbfd94..393ee0a 100644
--- a/service/native/TrafficController.cpp
+++ b/service/native/TrafficController.cpp
@@ -601,8 +601,10 @@
     }
 }
 
-void TrafficController::dump(DumpWriter& dw, bool verbose) {
+void TrafficController::dump(int fd, bool verbose) {
     std::lock_guard guard(mMutex);
+    DumpWriter dw(fd);
+
     ScopedIndent indentTop(dw);
     dw.println("TrafficController");