diff --git a/tsdb/compact_test.go b/tsdb/compact_test.go
index 4dfb06a673..1cb6b6b919 100644
--- a/tsdb/compact_test.go
+++ b/tsdb/compact_test.go
@@ -650,8 +650,8 @@ func TestCompaction_CompactEmptyBlocks(t *testing.T) {
 		}
 
 		bdir := filepath.Join(dir, id.String())
-		require.NoError(t, os.Mkdir(bdir, 0777))
-		require.NoError(t, os.Mkdir(chunkDir(bdir), 0777))
+		require.NoError(t, os.Mkdir(bdir, 0o777))
+		require.NoError(t, os.Mkdir(chunkDir(bdir), 0o777))
 
 		_, err := writeMetaFile(log.NewNopLogger(), bdir, m)
 		require.NoError(t, err)
diff --git a/tsdb/querier_bench_test.go b/tsdb/querier_bench_test.go
index 72e4b287fb..a546986711 100644
--- a/tsdb/querier_bench_test.go
+++ b/tsdb/querier_bench_test.go
@@ -169,7 +169,7 @@ func BenchmarkQuerierSelect(b *testing.B) {
 	}
 	require.NoError(b, app.Commit())
 
-	bench := func(b *testing.B, br BlockReader, sorted bool, sharding bool) {
+	bench := func(b *testing.B, br BlockReader, sorted, sharding bool) {
 		matcher := labels.MustNewMatcher(labels.MatchEqual, "foo", "bar")
 		for s := 1; s <= numSeries; s *= 10 {
 			b.Run(fmt.Sprintf("%dof%d", s, numSeries), func(b *testing.B) {
diff --git a/tsdb/symbols_batch.go b/tsdb/symbols_batch.go
index b6f6a3a345..8ef4e9ac28 100644
--- a/tsdb/symbols_batch.go
+++ b/tsdb/symbols_batch.go
@@ -257,7 +257,6 @@ func openFiles(filenames []string) ([]*os.File, error) {
 
 	for _, fn := range filenames {
 		f, err := os.Open(fn)
-
 		if err != nil {
 			// Close files opened so far.
 			for _, sf := range result {