diff --git a/src/documents/bulk_edit.py b/src/documents/bulk_edit.py
index eacc5a4fc..ba8e565e0 100644
--- a/src/documents/bulk_edit.py
+++ b/src/documents/bulk_edit.py
@@ -387,7 +387,8 @@ def delete_pages(doc_ids: list[int], pages: list[int]):
             pdf.remove_unreferenced_resources()
             pdf.save()
             doc.checksum = hashlib.md5(doc.source_path.read_bytes()).hexdigest()
-            doc.pages_count = doc.pages_count - len(pages)
+            if doc.pages_count is not None:
+                doc.pages_count = doc.pages_count - len(pages)
             doc.save()
             update_document_archive_file.delay(document_id=doc.id)
             logger.info(f"Deleted pages {pages} from document {doc.id}")