diff --git a/infra/migrations/035_model_validation.sql b/infra/migrations/035_model_validation.sql
index 2da929e..0e566e5 100644
--- a/infra/migrations/035_model_validation.sql
+++ b/infra/migrations/035_model_validation.sql
@@ -10,7 +10,7 @@ CREATE TABLE IF NOT EXISTS prediction_snapshots (
     id UUID PRIMARY KEY DEFAULT gen_random_uuid(),
     generated_at TIMESTAMPTZ NOT NULL,
     ticker VARCHAR(20) NOT NULL,
-    window VARCHAR(20) NOT NULL,
+    "window" VARCHAR(20) NOT NULL,
     horizon VARCHAR(20) NOT NULL,
     direction VARCHAR(20) NOT NULL,
     action VARCHAR(20) NOT NULL,
diff --git a/services/trading/backtest_replay.py b/services/trading/backtest_replay.py
index 9fb29b4..44dae53 100644
--- a/services/trading/backtest_replay.py
+++ b/services/trading/backtest_replay.py
@@ -507,7 +507,7 @@ class BacktestReplay:
         # because that function fetches *latest* prices (not point-in-time).
         insert_sql = """
         INSERT INTO prediction_snapshots (
-            id, generated_at, ticker, window, horizon, direction, action, mode,
+            id, generated_at, ticker, "window", horizon, direction, action, mode,
             strength, confidence, contradiction, p_bull, p_bear,
             score_company, score_macro, score_competitive,
             evidence_count, unique_source_count, duplicate_evidence_count,
diff --git a/services/validation/prediction_snapshot.py b/services/validation/prediction_snapshot.py
index 7308f52..f514f80 100644
--- a/services/validation/prediction_snapshot.py
+++ b/services/validation/prediction_snapshot.py
@@ -240,7 +240,7 @@ def _compute_layer_scores(
 
 _INSERT_SNAPSHOT_SQL = """
 INSERT INTO prediction_snapshots (
-    id, generated_at, ticker, window, horizon, direction, action, mode,
+    id, generated_at, ticker, "window", horizon, direction, action, mode,
     strength, confidence, contradiction, p_bull, p_bear,
     score_company, score_macro, score_competitive,
     evidence_count, unique_source_count, duplicate_evidence_count,