diff --git a/doc/configuration.txt b/doc/configuration.txt
index 990edef75..47b925457 100644
--- a/doc/configuration.txt
+++ b/doc/configuration.txt
@@ -5500,7 +5500,7 @@ tune.ssl.keylog { on | off }
   These sample fetches should be used to generate the SSLKEYLOGFILE that is
   required to decipher traffic with wireshark.
 
-  https://developer.mozilla.org/en-US/docs/Mozilla/Projects/NSS/Key_Log_Format
+  https://tlswg.org/sslkeylogfile/draft-ietf-tls-keylogfile.html
 
   The SSLKEYLOG is a series of lines which are formatted this way: