From d6cd58922a1c2f54683746574fbd94e0447e630c Mon Sep 17 00:00:00 2001
From: VirtuBox <thomas@virtubox.net>
Date: Thu, 22 Aug 2019 16:33:56 +0200
Subject: [PATCH] Fix pre_pref

---
 wo/cli/plugins/stack_upgrade.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/wo/cli/plugins/stack_upgrade.py b/wo/cli/plugins/stack_upgrade.py
index f86a366..b46858c 100644
--- a/wo/cli/plugins/stack_upgrade.py
+++ b/wo/cli/plugins/stack_upgrade.py
@@ -184,7 +184,7 @@ class WOStackUpgradeController(CementBaseController):
                         Log.error(self, "Not starting package update")
                 Log.info(self, "Updating APT packages, please wait...")
                 if set(WOVariables.wo_nginx).issubset(set(apt_packages)):
-                    pre_pref(self, nginx_packages, empty_packages)
+                    pre_pref(self, nginx_packages)
                 # apt-get update
                 WOAptGet.update(self)
                 if set(WOVariables.wo_php).issubset(set(apt_packages)):