diff --git a/app/services/backtest_service.py b/app/services/backtest_service.py
index fa0121b..bdd3f5e 100644
--- a/app/services/backtest_service.py
+++ b/app/services/backtest_service.py
@@ -1865,8 +1865,8 @@ def _portfolio_monitor(
             for s in PORTFOLIO_MONITOR_STRATEGIES
         ],
         "lookbacks": [
-            {"lookback": l["lookback"], "label": l["label"]}
-            for l in PORTFOLIO_MONITOR_LOOKBACKS
+            {"lookback": lb["lookback"], "label": lb["label"]}
+            for lb in PORTFOLIO_MONITOR_LOOKBACKS
         ],
         "runs": rows,
         "note": (