diff --git a/ndn-cpp/transport/UdpTransport.hpp b/ndn-cpp/transport/UdpTransport.hpp
index 781effd..9043e5c 100644
--- a/ndn-cpp/transport/UdpTransport.hpp
+++ b/ndn-cpp/transport/UdpTransport.hpp
@@ -30,6 +30,8 @@
 
   virtual void tempReceive();
   
+  virtual void close();
+
 private:
   struct ndn_UdpTransport transport_;
   Face *face_;