diff --git a/tradingagents/dataflows/discovery/filter.py b/tradingagents/dataflows/discovery/filter.py
index cc4f1dca..7dcced1c 100644
--- a/tradingagents/dataflows/discovery/filter.py
+++ b/tradingagents/dataflows/discovery/filter.py
@@ -5,6 +5,7 @@ from typing import Any, Callable, Dict, List
 
 import pandas as pd
 
+from tradingagents.dataflows.data_cache.ohlcv_cache import download_ohlcv_cached
 from tradingagents.dataflows.discovery.candidate import Candidate
 from tradingagents.dataflows.discovery.discovery_config import DiscoveryConfig
 from tradingagents.dataflows.discovery.utils import (