diff --git a/common/lib/capa/capa/capa_problem.py b/common/lib/capa/capa/capa_problem.py
index 9dc7658884..3a847f8306 100644
--- a/common/lib/capa/capa/capa_problem.py
+++ b/common/lib/capa/capa/capa_problem.py
@@ -205,7 +205,7 @@ class LoncapaProblem(object):
         '''
         Returns True if any part of the problem has been submitted to an external queue
         '''
-        return any([self.correct_map.is_queued(answer_id) for answer_id in self.correct_map])
+        return any(self.correct_map.is_queued(answer_id) for answer_id in self.correct_map)
 
 
     def get_recentmost_queuetime(self):