diff --git a/include/ndn-cpp/transport/unix-transport.hpp b/include/ndn-cpp/transport/unix-transport.hpp
index 1cc4758..9692cff 100644
--- a/include/ndn-cpp/transport/unix-transport.hpp
+++ b/include/ndn-cpp/transport/unix-transport.hpp
@@ -21,7 +21,9 @@
 
   // from Transport
   virtual void 
-  connect(boost::asio::io_service &ioService, const ReceiveCallback &receiveCallback);
+  connect(boost::asio::io_service &ioService,
+          const ReceiveCallback &receiveCallback,
+          const ErrorCallback &errorCallback);
   
   virtual void 
   close();