From 78456d5bc3f3ba42242bdb80e4bde83edc9336d4 Mon Sep 17 00:00:00 2001
From: Lipu Fei <lipu.fei815@gmail.com>
Date: Thu, 9 Nov 2017 09:06:46 +0100
Subject: [PATCH] Fix clusterSize property check in QML

---
 plugins/UM3NetworkPrinting/DiscoverUM3Action.qml | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/plugins/UM3NetworkPrinting/DiscoverUM3Action.qml b/plugins/UM3NetworkPrinting/DiscoverUM3Action.qml
index e4cbc6a0c7..cec2bf0f0f 100644
--- a/plugins/UM3NetworkPrinting/DiscoverUM3Action.qml
+++ b/plugins/UM3NetworkPrinting/DiscoverUM3Action.qml
@@ -277,7 +277,7 @@ Cura.MachineAction
                     wrapMode: Text.WordWrap
                     text:{
                         // The property cluster size does not exist for older UM3 devices.
-                        if(!base.selectedPrinter && (base.selectedPrinter.clusterSize == null || base.selectedPrinter.clusterSize == 1))
+                        if(!base.selectedPrinter || base.selectedPrinter.clusterSize == null || base.selectedPrinter.clusterSize == 1)
                         {
                             return "";
                         }