Index: /issm/trunk-jpl/test/NightlyRun/runme.py
===================================================================
--- /issm/trunk-jpl/test/NightlyRun/runme.py	(revision 23159)
+++ /issm/trunk-jpl/test/NightlyRun/runme.py	(revision 23160)
@@ -96,5 +96,5 @@
 	#GET exclude {{{
 	exclude_ids = []
-	if np.size(exclude) > 0:
+	if exclude != None and np.size(exclude) > 0:
 		# 1 exclusion, either an id or a test name
 		if type(exclude) == str: