diff --git a/cms/djangoapps/contentstore/views/import_export.py b/cms/djangoapps/contentstore/views/import_export.py
index f6b464479b55..44135322b41e 100644
--- a/cms/djangoapps/contentstore/views/import_export.py
+++ b/cms/djangoapps/contentstore/views/import_export.py
@@ -374,11 +374,11 @@ def export_status_handler(request, course_key_string):
         if isinstance(artifact.file.storage, FileSystemStorage):
             output_url = reverse_course_url('export_output_handler', course_key)
         elif isinstance(artifact.file.storage, S3Boto3Storage):
-            disposition = 'attachment; filename="{}"'.format(filename)
+            disposition = 'attachment; filename="{}"'.format(artifact.file.name)
             params = {
-                "ResponseContentDisposition": disposition,
+                'ResponseContentDisposition': disposition,
                 'ResponseContentEncoding': 'application/octet-stream',
-                "ResponseContentType": "application/x-tgz",
+                'ResponseContentType': 'application/x-tgz',
             }
             output_url = artifact.file.storage.url(
                 artifact.file.name,