diff --git a/etc/NEWS b/etc/NEWS
index 8080e10c7e5..6151543ee4e 100644
--- a/etc/NEWS
+++ b/etc/NEWS
@@ -433,6 +433,8 @@ want to reverse the direction of the scroll, customize
 
 +++
 ** The default GnuTLS priority string now includes %DUMBFW.
+This is to avoid bad behavior in some firewalls, which causes the
+connection to be closed by the remote host.
 
 ** Emacsclient changes