diff --git a/install-stack.sh b/install-stack.sh
index cb9ead9..be94a07 100755
--- a/install-stack.sh
+++ b/install-stack.sh
@@ -2497,7 +2497,7 @@ SUMMARY
 # Sources existing credentials and redeploys just the named service.
 if [[ "${1:-}" == "--only" ]]; then
   ONLY="${2:-}"
-  VALID="postgres auth portal npm management noticeboard settings cashup hk-planner twin-optimiser room-planner maintenance forecasting rates reports kitchen kds wages utilities mqtt-broker hvac calendar"
+  VALID="postgres auth portal npm management noticeboard settings cashup hk-planner twin-optimiser room-planner maintenance forecasting rates reports kitchen kds wages utilities mqtt-broker hvac calendar plant"
   [[ -z "$ONLY" ]] && msg_error "Usage: install-stack.sh --only <service>  (one of: ${VALID})"
   grep -qw "$ONLY" <<< "$VALID" || msg_error "Unknown service '${ONLY}'. Valid: ${VALID}"
   CREDS_FILE=/root/hotel-manage-credentials.txt