storage/sqlite/sqlite-storage.go | 6 ++++--

diff --git a/storage/sqlite/sqlite-storage.go b/storage/sqlite/sqlite-storage.go
index 2f58883ae58f87bb24877012dc7c3fe7155997e0..22b4b8fd071f91e573ca06938da45a4bcfddc2ed 100644
--- a/storage/sqlite/sqlite-storage.go
+++ b/storage/sqlite/sqlite-storage.go
@@ -319,9 +319,11 @@ 				from blob
 				where name like ?||'%'
 				order by offset`,
 			func(stmt *sqlite.Stmt) error {
+				offset := stmt.ColumnInt64(1)
+				if offset != written {
+					return fmt.Errorf("got chunk at offset %v, expected offset %v", offset, written)
+				}
 				r := stmt.ColumnReader(0)
-				//offset := stmt.ColumnInt64(1)
-				//log.Printf("got %v bytes at offset %v", r.Len(), offset)
 				w1, err := io.Copy(w, r)
 				written += w1
 				return err