diff --git a/hack/bootstrap_tfw_dev.sh b/hack/bootstrap_tfw_dev.sh
index 9b3d9cf..b38cd72 100755
--- a/hack/bootstrap_tfw_dev.sh
+++ b/hack/bootstrap_tfw_dev.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 set -eo pipefail
 
 LOGFILE="/tmp/bootstrap_tfw.log"