diff --git a/daemon/face/internal-transport.hpp b/daemon/face/internal-transport.hpp
index 6296110..67a53b3 100644
--- a/daemon/face/internal-transport.hpp
+++ b/daemon/face/internal-transport.hpp
@@ -1,5 +1,5 @@
 /* -*- Mode:C++; c-file-style:"gnu"; indent-tabs-mode:nil; -*- */
-/**
+/*
  * Copyright (c) 2014-2017,  Regents of the University of California,
  *                           Arizona Board of Regents,
  *                           Colorado State University,
@@ -37,6 +37,9 @@
 class InternalTransportBase
 {
 public:
+  virtual
+  ~InternalTransportBase() = default;
+
   /** \brief causes the transport to receive a link-layer packet
    */
   virtual void