diff --git a/mayan/apps/sources/tasks.py b/mayan/apps/sources/tasks.py
index 89e27930e2..6c5273bae8 100644
--- a/mayan/apps/sources/tasks.py
+++ b/mayan/apps/sources/tasks.py
@@ -140,7 +140,7 @@ def task_source_handle_upload(self, document_type_id, shared_uploaded_file_id, s
         if expand:
             try:
                 compressed_file = Archive.open(file_object=file_object)
-                for compressed_file_child in compressed_file.children():
+                for compressed_file_child in compressed_file.get_members():
                     # TODO: find way to uniquely identify child files
                     # Use filename in the mean time.
                     if force_text(compressed_file_child) not in skip_list: