diff --git a/.env b/.env
index 04e929f9..267fe0b4 100644
--- a/.env
+++ b/.env
@@ -30,9 +30,6 @@ COMPOSE_FILE=${COMPOSE_FILE}:docker/docker-compose-grafana.yml
 # COMPOSE_PROFILES=${COMPOSE_PROFILES+${COMPOSE_PROFILES-},}demo
 COMPOSE_FILE=${COMPOSE_FILE}:docker/docker-compose-demo.yml
 
-## For testing only: use a ClickHouse cluster
-# COMPOSE_FILE=${COMPOSE_FILE}:docker/docker-compose-clickhouse-cluster.yml
-
 ## TLS setup (with HTTP → HTTPS redirection)
 # COMPOSE_FILE=${COMPOSE_FILE}:docker/docker-compose-tls.yml
 # TLS_DOMAIN=...