diff --git a/include/nuttx/net/net.h b/include/nuttx/net/net.h
index 3c332fe5cc..203239c1d7 100644
--- a/include/nuttx/net/net.h
+++ b/include/nuttx/net/net.h
@@ -227,6 +227,7 @@ struct socket_conn_s
    */
 
   FAR struct devif_callback_s *list;
+  FAR struct devif_callback_s *list_tail;
 
   /* Connection-specific content may follow */
 };