diff --git a/ndn-cpp/c/errors.h b/ndn-cpp/c/errors.h
index 56f509c..f574b6a 100644
--- a/ndn-cpp/c/errors.h
+++ b/ndn-cpp/c/errors.h
@@ -38,7 +38,12 @@
   NDN_ERROR_TcpTransport_cannot_connect_to_socket,
   NDN_ERROR_TcpTransport_socket_is_not_open,
   NDN_ERROR_TcpTransport_error_in_send,
-  NDN_ERROR_TcpTransport_error_in_recv
+  NDN_ERROR_TcpTransport_error_in_recv,
+  NDN_ERROR_UdpTransport_error_in_getaddrinfo,
+  NDN_ERROR_UdpTransport_cannot_connect_to_socket,
+  NDN_ERROR_UdpTransport_socket_is_not_open,
+  NDN_ERROR_UdpTransport_error_in_send,
+  NDN_ERROR_UdpTransport_error_in_recv
 } ndn_Error;
   
 /**