diff --git a/scripts/upgrade b/scripts/upgrade
index 3e3dead..26c512f 100644
--- a/scripts/upgrade
+++ b/scripts/upgrade
@@ -22,6 +22,7 @@ final_path=$(ynh_app_setting_get --app=$app --key=final_path)
 port=$(ynh_app_setting_get --app=$app --key=port)
 rtmp_port=$(ynh_app_setting_get --app=$app --key=rtmp_port)
 db_name=$(ynh_app_setting_get --app=$app --key=db_name)
+db_user=$app
 db_pwd=$(ynh_app_setting_get --app=$app --key=db_pwd)
 datadir=$(ynh_app_setting_get --app=$app --key=datadir)
 admin=$(ynh_app_setting_get --app=$app --key=admin)