diff --git a/tools/pi_control/worker_entry.sh b/tools/pi_control/worker_entry.sh
index 9081e31..3183584 100644
--- a/tools/pi_control/worker_entry.sh
+++ b/tools/pi_control/worker_entry.sh
@@ -4,8 +4,10 @@ set -eu
 APP_ENV="${APP_ENV:-staging}"
 
 if [ "$APP_ENV" = "live" ]; then
+  # NOTE: Renamed from worker.php due to CIFS/SMB invalid argument errors on rename/open.
   SCRIPT="/app/live/tools/pi_control/pi_worker.php"
 else
+  # NOTE: Renamed from worker.php due to CIFS/SMB invalid argument errors on rename/open.
   SCRIPT="/app/staging/tools/pi_control/pi_worker.php"
 fi