diff --git a/webapp/home/views.py b/webapp/home/views.py
index ce2fe9bb..be6c04aa 100644
--- a/webapp/home/views.py
+++ b/webapp/home/views.py
@@ -2733,7 +2733,7 @@ def create_ezeml_package_manifest(user_folder, manifest_files):
     package_id = eml_node.attribute_value("packageId")
     if package_id and package_id != current_document:
         # copy the EML file using the package_id as name
-        arcname = f'{sanitize_filename(package_id)}.xml'
+        arcname = f"{package_id.replace('/', '_')}.xml"
         copyfile(f'{user_folder}/{current_document}.xml', f'{user_folder}/{arcname}')
     else:
         arcname = f'{current_document}.xml'