diff --git a/common/lib/xmodule/setup.py b/common/lib/xmodule/setup.py
index c20b50ec66..c867fca228 100644
--- a/common/lib/xmodule/setup.py
+++ b/common/lib/xmodule/setup.py
@@ -19,7 +19,7 @@ setup(
             "abtest = xmodule.abtest_module:ABTestDescriptor",
             "book = xmodule.backcompat_module:TranslateCustomTagDescriptor",
             "chapter = xmodule.seq_module:SequenceDescriptor",
-            "combinedopenended = xmodule.combined_open_ended_module:CombinedOpenEndedDescriptor"
+            "combinedopenended = xmodule.combined_open_ended_module:CombinedOpenEndedDescriptor",
             "course = xmodule.course_module:CourseDescriptor",
             "customtag = xmodule.template_module:CustomTagDescriptor",
             "discuss = xmodule.backcompat_module:TranslateCustomTagDescriptor",