diff --git a/scripts/upgrade b/scripts/upgrade
index 6efe765..a84952e 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -26,6 +26,8 @@ db_user=$db_name
 db_pwd=$(ynh_app_setting_get --app=$app --key=mysqlpwd)
 datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 
+timezone=$(cat /etc/timezone)
+
 #=================================================
 # CHECK VERSION
 #=================================================