diff --git a/.gitignore b/.gitignore
index 8e8c119..9934616 100644
--- a/.gitignore
+++ b/.gitignore
@@ -33,6 +33,7 @@ data/processed/feature_schema_*.json
 data/processed/.validation_checkpoint.parquet
 data/processed/validation_smoke.parquet
 data/processed/tensor_window_*/
+data/processed/knn_*.parquet
 data/logs/
 artifacts/
 artifacts-*/