diff --git a/backend/app/routers/objects.py b/backend/app/routers/objects.py
index 3b12aaf..7e19be8 100644
--- a/backend/app/routers/objects.py
+++ b/backend/app/routers/objects.py
@@ -296,7 +296,7 @@ async def _parse_objects_xlsx(
 
     def _cell(row: tuple, key: str) -> str | None:
         idx = col.get(key)
-        if idx is None:
+        if idx is None or idx >= len(row):
             return None
         val = row[idx]
         if val is None: