--- a/Plugins/VcsPlugins/vcsMercurial/HgStatusDialog.py	Fri Jun 23 18:46:40 2017 +0200
+++ b/Plugins/VcsPlugins/vcsMercurial/HgStatusDialog.py	Sat Jun 24 12:15:03 2017 +0200
@@ -904,6 +904,7 @@
         Private slot to generate diff outputs for the selected item.
         """
         self.diffEdit.clear()
+        self.diffHighlighter.regenerateRules()
         
         if not self.__mq:
             selectedItems = self.statusList.selectedItems()