diff --git a/draft-ietf-opsawg-pcapng.md b/draft-ietf-opsawg-pcapng.md
index a392a3a..943eee9 100644
--- a/draft-ietf-opsawg-pcapng.md
+++ b/draft-ietf-opsawg-pcapng.md
@@ -2058,7 +2058,7 @@ The following is a list of Secrets Types.
 {: indent='8'}
 0x544c534b:
 : TLS Key Log. This
-  format is described at [NSS Key Log Format](https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format). Every line MUST be properly terminated with
+  format is described at [NSS Key Log Format](https://udn.realityripple.com/docs/Mozilla/Projects/NSS/Key_Log_Format). Every line MUST be properly terminated with
   either carriage return and linefeed ('\r\n') or linefeed ('\n').
   Tools MUST be able to handle both line endings.
 {: vspace='0'}