diff --git a/domain/bulk_document_download/package_plan.py b/domain/bulk_document_download/package_plan.py
index 64e57950d..bcd122aad 100644
--- a/domain/bulk_document_download/package_plan.py
+++ b/domain/bulk_document_download/package_plan.py
@@ -64,8 +64,17 @@ def plan_download_package(
     per property, the latest file of each Document Type, null-Document-Type rows
     skipped and reported."""
     latest_by_group: dict[tuple[str, str], ResolvedDocument] = {}
+    skipped: list[SkippedDocument] = []
     for document in documents:
-        assert document.document_type is not None
+        if document.document_type is None:
+            skipped.append(
+                SkippedDocument(
+                    landlord_property_id=document.landlord_property_id,
+                    s3_key=document.s3_key,
+                    reason="null_document_type",
+                )
+            )
+            continue
         group = (document.landlord_property_id, document.document_type)
         incumbent = latest_by_group.get(group)
         if incumbent is None or document.uploaded_at > incumbent.uploaded_at:
@@ -80,4 +89,4 @@ def plan_download_package(
         )
         for document in latest_by_group.values()
     ]
-    return DownloadPackagePlan(entries=tuple(entries), skipped=())
+    return DownloadPackagePlan(entries=tuple(entries), skipped=tuple(skipped))