diff --git a/qa/tasks/vstart_runner.py b/qa/tasks/vstart_runner.py
index 68745b6125f..f9e241a378b 100644
--- a/qa/tasks/vstart_runner.py
+++ b/qa/tasks/vstart_runner.py
@@ -350,8 +350,8 @@ class LocalRemote(object):
         shell = any([a for a in args if isinstance(a, Raw)])
 
         # Filter out helper tools that don't exist in a vstart environment
-        args = [a for a in args if a not in {
-            'adjust-ulimits', 'ceph-coverage'}]
+        args = [a for a in args if a not in ('adjust-ulimits',
+                                             'ceph-coverage')]
 
         # Adjust binary path prefix if given a bare program name
         if "/" not in args[0]: