diff --git a/tsdb/wal/live_reader.go b/tsdb/wal/live_reader.go
index 54c4a584e2..9155e4d03f 100644
--- a/tsdb/wal/live_reader.go
+++ b/tsdb/wal/live_reader.go
@@ -27,7 +27,7 @@ import (
 	"github.com/prometheus/client_golang/prometheus"
 )
 
-// liveReaderMetrics holds all metrics exposed by the LiveReader.
+// LiveReaderMetrics holds all metrics exposed by the LiveReader.
 type LiveReaderMetrics struct {
 	readerCorruptionErrors *prometheus.CounterVec
 }