diff --git a/nextcloud/rootfs/etc/cont-init.d/99-add_packages.sh b/nextcloud/rootfs/etc/cont-init.d/99-add_packages.sh
index 076fa6aee..75bc7a9ba 100644
--- a/nextcloud/rootfs/etc/cont-init.d/99-add_packages.sh
+++ b/nextcloud/rootfs/etc/cont-init.d/99-add_packages.sh
@@ -1,4 +1,5 @@
-#!/bin/bash
+#!/usr/bin/with-contenv bashio
+# shellcheck shell=bash
 
 # Install specific packages
 if [ ! -d /data/config/www/nextcloud/apps/pdfannotate ]; then