diff --git a/src/transport/unix-transport.hpp b/src/transport/unix-transport.hpp
index 6cff8dc..5fe14ee 100644
--- a/src/transport/unix-transport.hpp
+++ b/src/transport/unix-transport.hpp
@@ -74,7 +74,7 @@
 
   typedef StreamTransportImpl<UnixTransport, boost::asio::local::stream_protocol> Impl;
   friend class StreamTransportImpl<UnixTransport, boost::asio::local::stream_protocol>;
-  ptr_lib::shared_ptr< Impl > m_impl;
+  shared_ptr< Impl > m_impl;
 };
 
 }