diff --git a/src/backend/core/api/viewsets.py b/src/backend/core/api/viewsets.py
index 49b048a2..43f68399 100644
--- a/src/backend/core/api/viewsets.py
+++ b/src/backend/core/api/viewsets.py
@@ -637,6 +637,7 @@ class DocumentViewSet(
         permission_classes=[],
         url_path="create-for-owner",
     )
+    @transaction.atomic
     def create_for_owner(self, request):
         """
         Create a document on behalf of a specified owner (pre-existing user or invited).