diff --git a/src/evl/trecw.py b/src/evl/trecw.py
index bb61701..8bde3d8 100644
--- a/src/evl/trecw.py
+++ b/src/evl/trecw.py
@@ -1,7 +1,6 @@
 import os
 
 
-
 def evaluate(in_docids, out_metrics, qrels, metric, lib, mean=False, topk=10):
     # qrels can have queries that are not in in_docids (superset)
     # also prediction may have queries that are not known to qrels