diff --git a/DNS-01-hook-for-DuckDNS.md b/DNS-01-hook-for-DuckDNS.md
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--- a/DNS-01-hook-for-DuckDNS.md
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-The following hook will work for the DNS-01 challenge with [duckdns.org](https://www.duckdns.org)
-
-```bash
-#!/usr/bin/env bash
-
-#
-# dns-01 challenge for DuckDNS
-# https://www.duckdns.org/spec.jsp
-
-set -e
-set -u
-set -o pipefail
-
-domain="your-domain"
-token="your-token"
-
-case "$1" in
-    "deploy_challenge")
-        curl "https://www.duckdns.org/update?domains=$domain&token=$token&txt=$4"
-        echo
-        ;;
-    "clean_challenge")
-        curl "https://www.duckdns.org/update?domains=$domain&token=$token&txt=removed&clear=true"
-        echo
-        ;;
-    "sync_cert")
-        ;;
-    "deploy_cert")
-        ;;
-    "deploy_ocsp")
-        ;;
-    "unchanged_cert")
-        ;;
-    "invalid_challenge")
-        ;;
-    "request_failure")
-        ;;
-    "generate_csr")
-        ;;
-    "startup_hook")
-        ;;
-    "exit_hook")
-        ;;
-    *)
-        echo Unknown hook "${1}"
-        exit 0
-        ;;
-esac
-```
\ No newline at end of file