diff --git a/libexec/rbenv b/libexec/rbenv
index 1241ab6c..008cc808 100755
--- a/libexec/rbenv
+++ b/libexec/rbenv
@@ -7,7 +7,7 @@ if [ "$1" = "--debug" ]; then
 fi
 
 if [ -n "$RBENV_DEBUG" ]; then
-  # https://wiki-dev.bash-hackers.org/scripting/debuggingtips#making_xtrace_more_useful
+  # https://web.archive.org/web/20221105082147/https://wiki-dev.bash-hackers.org/scripting/debuggingtips#making_xtrace_more_useful
   export PS4='+(${BASH_SOURCE}:${LINENO}): ${FUNCNAME[0]:+${FUNCNAME[0]}(): }'
   set -x
 fi