diff --git a/ndn-cpp/c/errors.c b/ndn-cpp/c/errors.c
index f6dcfec..a5b0510 100644
--- a/ndn-cpp/c/errors.c
+++ b/ndn-cpp/c/errors.c
@@ -64,6 +64,8 @@
     return      "SocketTransport error in send";
   case NDN_ERROR_SocketTransport_error_in_recv:
     return      "SocketTransport error in recv";
+  case NDN_ERROR_SocketTransport_error_in_close:
+    return      "SocketTransport error in close";
   default:
     return "unrecognized ndn_Error code";  
   }