diff --git a/cms/djangoapps/contentstore/course_info_model.py b/cms/djangoapps/contentstore/course_info_model.py
index 23fad96caa..95fa1faca6 100644
--- a/cms/djangoapps/contentstore/course_info_model.py
+++ b/cms/djangoapps/contentstore/course_info_model.py
@@ -57,7 +57,7 @@ def update_course_updates(location, update, passed_id=None):
     try:
         course_updates = modulestore('direct').get_item(location)
     except ItemNotFoundError:
-        return HttpResponseBadRequest
+        return HttpResponseBadRequest()
     
     # purely to handle free formed updates not done via editor. Actually kills them, but at least doesn't break.
     try:
@@ -95,12 +95,12 @@ def delete_course_update(location, update, passed_id):
     Returns the resulting course_updates b/c their ids change.
     """
     if not passed_id:
-        return HttpResponseBadRequest
+        return HttpResponseBadRequest()
         
     try:
         course_updates = modulestore('direct').get_item(location)
     except ItemNotFoundError:
-        return HttpResponseBadRequest
+        return HttpResponseBadRequest()
     
     # TODO use delete_blank_text parser throughout and cache as a static var in a class
     # purely to handle free formed updates not done via editor. Actually kills them, but at least doesn't break.
diff --git a/cms/djangoapps/contentstore/views.py b/cms/djangoapps/contentstore/views.py
index 9ca8e5e8ec..e8211993bd 100644
--- a/cms/djangoapps/contentstore/views.py
+++ b/cms/djangoapps/contentstore/views.py
@@ -204,7 +204,7 @@ def edit_subsection(request, location):
 
     # make sure that location references a 'sequential', otherwise return BadRequest
     if item.location.category != 'sequential':
-        return HttpResponseBadRequest
+        return HttpResponseBadRequest()
 
     parent_locs = modulestore().get_parent_locations(location)
 
@@ -1021,7 +1021,7 @@ def module_info(request, module_location):
     elif real_method == 'POST' or real_method == 'PUT':
         return HttpResponse(json.dumps(set_module_info(get_modulestore(location), location, request.POST)), mimetype="application/json")
     else:
-        return HttpResponseBadRequest
+        return HttpResponseBadRequest()
 
 @login_required
 @ensure_csrf_cookie