diff --git a/scripts/validate/language_structure.sh b/scripts/validate/language_structure.sh
index 48c633d..03b0054 100644
--- a/scripts/validate/language_structure.sh
+++ b/scripts/validate/language_structure.sh
@@ -1,3 +1,4 @@
+#!/usr/bin/env bash
 set -euo pipefail
 
 SRC_DIR="${SRC_DIR:-src}"