diff --git a/storage/fanout/fanout_test.go b/storage/fanout/fanout_test.go
index 2ddbe09fa..e26106cca 100644
--- a/storage/fanout/fanout_test.go
+++ b/storage/fanout/fanout_test.go
@@ -79,7 +79,7 @@ func TestSelectSorted(t *testing.T) {
 	matcher, err := labels.NewMatcher(labels.MatchEqual, model.MetricNameLabel, "a")
 	testutil.Ok(t, err)
 
-	seriesSet, _, err := querier.Select(false, nil, matcher)
+	seriesSet, _, err := querier.Select(true, nil, matcher)
 	testutil.Ok(t, err)
 
 	result := make(map[int64]float64)
diff --git a/tsdb/querier.go b/tsdb/querier.go
index ca4fa5e5a..4652a3f78 100644
--- a/tsdb/querier.go
+++ b/tsdb/querier.go
@@ -98,7 +98,7 @@ func (q *querier) Select(sortSeries bool, hints *storage.SelectHints, ms ...*lab
 	for i, b := range q.blocks {
 		// Sorting Head series is slow, and unneeded when only the
 		// Head is being queried. Sorting blocks is a noop.
-		// Still we have to sort if blocks > 1 as Merged Series requires.
+		// Still we have to sort if blocks > 1 as MergedSeriesSet requires it.
 		s, w, err := b.Select(true, hints, ms...)
 		ws = append(ws, w...)
 		if err != nil {