From 9ace9815b644e78bb32cb06c5aead82cf35115a5 Mon Sep 17 00:00:00 2001
From: PageArkanis <pagearkanis@gmail.com>
Date: Fri, 19 Aug 2016 15:11:06 +0100
Subject: [PATCH] fixed exception that froze interface

---
 gui/builtinViews/fittingView.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gui/builtinViews/fittingView.py b/gui/builtinViews/fittingView.py
index 8d6ed961b..15615d3bc 100644
--- a/gui/builtinViews/fittingView.py
+++ b/gui/builtinViews/fittingView.py
@@ -557,7 +557,7 @@ class FittingView(d.Display):
                      5: ''}
 
     def slotColour(self, slot):
-        return self.slotColourMap[slot] or self.GetBackgroundColour()
+        return self.slotColourMap.get(slot) or self.GetBackgroundColour()
 
     def refresh(self, stuff):
         '''