diff --git a/deploy/profile-scripts/predictive_oversold_scanner.py b/deploy/profile-scripts/predictive_oversold_scanner.py
index dab2f99a..49da2954 100644
--- a/deploy/profile-scripts/predictive_oversold_scanner.py
+++ b/deploy/profile-scripts/predictive_oversold_scanner.py
@@ -97,7 +97,8 @@ def load_market_state():
 
 def compute_market_filters():
     """计算大盘门控：mkt_rsi / mkt_dd60（用上证指数K线）"""
-    klines = fetch_tx_klines("sh000001", datalen=80)
+    # 000001 = 上证指数（fetch_tx_klines 自动加 sh 前缀；不能用带前缀的 sh000001）
+    klines = fetch_tx_klines("000001", datalen=80)
     if not klines or len(klines) < 70:
         return None
     closes = [k["close"] for k in klines]