diff --git a/app/core/chunking/chunking_utils.py b/app/core/chunking/chunking_utils.py
index 46fa28d..b0def8f 100644
--- a/app/core/chunking/chunking_utils.py
+++ b/app/core/chunking/chunking_utils.py
@@ -6,7 +6,7 @@ import math
 import yaml
 import logging
 from pathlib import Path
-from typing import Dict, Any, Tuple
+from typing import Dict, Any, Tuple, Optional
 
 logger = logging.getLogger(__name__)