diff --git a/.templates/99-custom_script.sh b/.templates/99-custom_script.sh
index 0b04f4017..2f4b3311f 100644
--- a/.templates/99-custom_script.sh
+++ b/.templates/99-custom_script.sh
@@ -1,4 +1,4 @@
-#!/bin/bash
+#!/usr/bin/with-contenv bashio
 
 CONFIGSOURCE=$(bashio::config "CONFIG_LOCATION")
 CONFIGSOURCE="$(dirname "${CONFIGSOURCE}")"