diff --git a/cms/djangoapps/contentstore/views/course.py b/cms/djangoapps/contentstore/views/course.py
index ef13c77af1b4..af4bf6396929 100644
--- a/cms/djangoapps/contentstore/views/course.py
+++ b/cms/djangoapps/contentstore/views/course.py
@@ -451,7 +451,7 @@ def course_filter(course_summary):
     courses_summary = get_courses_by_status(active_only, archived_only, courses_summary)
     courses_summary = get_courses_by_search_query(search_query, courses_summary)
     courses_summary = get_courses_order_by(order, courses_summary)
-    courses_summary = list(filter(course_filter, courses_summary))
+    courses_summary = filter(course_filter, courses_summary)
     in_process_course_actions = get_in_process_course_actions(request)
     return courses_summary, in_process_course_actions