diff --git a/scripts/helmcharts/build_deploy_parallel.sh b/scripts/helmcharts/build_deploy_parallel.sh
index 5b395fa29..6f321e53b 100644
--- a/scripts/helmcharts/build_deploy_parallel.sh
+++ b/scripts/helmcharts/build_deploy_parallel.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
 set -e
-
+# Must run inside tmux
 # This script will build and push docker image to registry
 
 # Usage: IMAGE_TAG=latest DOCKER_REPO=rg.fr-par.scw.cloud/foss bash build_deploy.sh