diff --git a/sat/memory/sqla.py b/sat/memory/sqla.py
index 34ee7482..6d6deddc 100644
--- a/sat/memory/sqla.py
+++ b/sat/memory/sqla.py
@@ -1373,7 +1373,7 @@ class Storage:
                     "last": last,
                 }.items() if v is not None
             }
-            metadata["complete"] = index + len(result) == rows_count
+            metadata["complete"] = (index or 0) + len(result) == rows_count
 
             return items, metadata