diff --git a/src/applications/onoff-application.h b/src/applications/onoff-application.h
index 5d9089668..431f00a98 100644
--- a/src/applications/onoff-application.h
+++ b/src/applications/onoff-application.h
@@ -98,7 +98,6 @@ private:
   void ConnectionSucceeded(Ptr<Socket>);
   void ConnectionFailed(Ptr<Socket>);
   void Ignore(Ptr<Socket>);
-protected:
 };
 
 } // namespace ns3