diff --git a/CLAUDE.md b/CLAUDE.md
index 6691aa34..bad2d032 100644
--- a/CLAUDE.md
+++ b/CLAUDE.md
@@ -295,7 +295,7 @@ Run via `docker-compose.observability.yml` — requires the main stack to be run
 | `PORT_PROMETHEUS` | Host port for Prometheus UI (default: `9090`) |
 | `GRAFANA_ADMIN_PASSWORD` | Grafana `admin` login password |
 | `GLITCHTIP_SECRET_KEY` | Django secret key for GlitchTip — generate with `python3 -c "import secrets; print(secrets.token_hex(32))"` |
-| `GLITCHTIP_DOMAIN` | Public-facing base URL for GlitchTip (email links, CORS) |
+| `GLITCHTIP_DOMAIN` | Public-facing base URL for GlitchTip (email links, CORS), e.g. `https://glitchtip.example.com` |
 | `SENTRY_DSN` | GlitchTip/Sentry DSN for the backend (Spring Boot) — leave empty to disable |
 | `VITE_SENTRY_DSN` | GlitchTip/Sentry DSN for the frontend (SvelteKit) — injected at build time via Vite |