diff --git a/planetstack/ec2_observer/event_loop.py b/planetstack/ec2_observer/event_loop.py
index a579a94..b366f31 100644
--- a/planetstack/ec2_observer/event_loop.py
+++ b/planetstack/ec2_observer/event_loop.py
@@ -238,7 +238,7 @@
 				logger.info('Observer woke up')
 
 				# Two passes. One for sync, the other for deletion.
-				for deletion in (False,True):
+				for deletion in [False,True]:
 					logger.info('Deletion=%r...'%deletion)
 					# Set of whole steps that failed
 					failed_steps = []
diff --git a/planetstack/openstack_observer/event_loop.py b/planetstack/openstack_observer/event_loop.py
index 9f4658e..90f99ad 100644
--- a/planetstack/openstack_observer/event_loop.py
+++ b/planetstack/openstack_observer/event_loop.py
@@ -238,7 +238,7 @@
 				logger.info('Observer woke up')
 
 				# Two passes. One for sync, the other for deletion.
-				for deletion in (False,True):
+				for deletion in [False,True]:
 					logger.info('Deletion=%r...'%deletion)
 					# Set of whole steps that failed
 					failed_steps = []