From aeda71695cd4cbc6cba47dd441e29bcd8898f556 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?E=CC=81ric=20Gaspar?=
 <46165813+ericgaspar@users.noreply.github.com>
Date: Mon, 10 Apr 2023 11:52:04 +0200
Subject: [PATCH] Update upgrade

---
 scripts/upgrade | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/upgrade b/scripts/upgrade
index c284bda..644825c 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -47,7 +47,7 @@ ynh_clean_setup () {
 ynh_script_progression --message="Ensuring downward compatibility..." --weight=1
 
 # If secret_key doesn't exist, create it
-if [[ -z "$secret_key" ]]; then
+if [[ -z "${secret_key:-}" ]]; then
 	secret_key=$(ynh_string_random --length=50)
 	ynh_app_setting_set --app=$app --key=secret_key --value=$secret_key
 fi