diff --git a/services/tuner/TunerFrontend.h b/services/tuner/TunerFrontend.h
index da471fb..9612124 100644
--- a/services/tuner/TunerFrontend.h
+++ b/services/tuner/TunerFrontend.h
@@ -83,6 +83,7 @@
 private:
     int mId;
     shared_ptr<IFrontend> mFrontend;
+    bool isClosed = false;
 };
 
 }  // namespace tuner