diff --git a/src/debug.py b/src/debug.py
index a70cb543..639be123 100644
--- a/src/debug.py
+++ b/src/debug.py
@@ -50,7 +50,7 @@ helper_startup.loadConfig()
 # Now can be overriden from a config file, which uses standard python
 # logging.config.fileConfig interface
 # examples are here:
-# https://bitmessage.org/forum/index.php/topic,4820.msg11163.html#msg11163
+# https://web.archive.org/web/20170712122006/https://bitmessage.org/forum/index.php/topic,4820.msg11163.html#msg11163
 log_level = 'WARNING'