diff --git a/scripts/validate/license_headers.sh b/scripts/validate/license_headers.sh
index f23acb9..47b235d 100644
--- a/scripts/validate/license_headers.sh
+++ b/scripts/validate/license_headers.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 set -euo pipefail
 
 SRC_DIR="${SRC_DIR:-src}"