diff --git a/setup.sh b/setup.sh
index 80c69d2..ee59d97 100755
--- a/setup.sh
+++ b/setup.sh
@@ -7,7 +7,9 @@ DIR="$(dirname -- "${BASH_SOURCE[0]}")"
 PROG="$(basename -- "${BASH_SOURCE[0]}")"
 LOCAL=$DIR/local.yml
 URL="https://git.hyperling.com/me/env-ansible"
-BRANCH="main"
+if [[ -z $BRANCH ]]; then
+	export BRANCH="main"
+fi
 
 LINUX_HOSTS_DIR=/etc/ansible
 LINUX_HOSTS_FILE="$LINUX_HOSTS_DIR/hosts"