diff --git a/contrib/gen_label_config.sh b/contrib/gen_label_config.sh
index 1f88145a..066113e3 100755
--- a/contrib/gen_label_config.sh
+++ b/contrib/gen_label_config.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/env bash
 
 set -e