diff --git a/qubesmanager/table_widgets.py b/qubesmanager/table_widgets.py
index dd22d2d..ab0ec44 100644
--- a/qubesmanager/table_widgets.py
+++ b/qubesmanager/table_widgets.py
@@ -523,7 +523,7 @@ class VmIncludeInBackupsItem(QtGui.QTableWidgetItem):
             self.include_in_backups = False
 
     def __lt__(self, other):
-        if self.vm.qid == 0:
+        if self.qid == 0:
             return True
         elif other.qid == 0:
             return False