--- a/canfestival/config_utils.py	Thu Nov 22 23:39:54 2018 +0100
+++ b/canfestival/config_utils.py	Fri Nov 23 00:33:04 2018 +0100
@@ -765,7 +765,7 @@
     # Generate MasterNode configuration
     try:
         masternode, pointedvariables = GenerateConciseDCF(locations, (0, 1), nodelist, True, "TestNode")
-    except ValueError, message:
+    except ValueError as message:
         print("%s\nTest Failed!" % message)
         sys.exit()