diff --git a/README.md b/README.md
index d604b85..beda5a6 100644
--- a/README.md
+++ b/README.md
@@ -106,7 +106,7 @@ Common errors:
 - API authentication failures: Check Cloudflare API token in `.env` file
 - Permission issues: Run with sudo for Caddyfile changes
 - Domain not found: Ensure domain is in `cf_domains.yaml`
-- Caddy failing to obtain HTTPS certificates: Ensure the Caddy service environment contains your CLOUDFLARE_API_TOKEN, and your Caddyfile contains your email address; see Caddy documentation if you have further trouble
+- Caddy failing to obtain HTTPS certificates: Ensure the Caddy service environment contains your CLOUDFLARE_API_TOKEN, and your Caddyfile contains your email address; see the [Caddy documentation](https://caddyserver.com/docs/) if you have further trouble
 
 Logs are in `cf_script.log` for troubleshooting.