diff --git a/pkg/storage/hot_region_storage.go b/pkg/storage/hot_region_storage.go
index 62f8f5bb81f..5759c259769 100644
--- a/pkg/storage/hot_region_storage.go
+++ b/pkg/storage/hot_region_storage.go
@@ -90,7 +90,7 @@ type HistoryHotRegion struct {
 
 // HotRegionStorageHandler help hot region storage get hot region info.
 type HotRegionStorageHandler interface {
-	// PackHistoryHotWriteRegions get read hot region info in HistoryHotRegion form.
+	// PackHistoryHotReadRegions get read hot region info in HistoryHotRegion form.
 	PackHistoryHotReadRegions() ([]HistoryHotRegion, error)
 	// PackHistoryHotWriteRegions get write hot region info in HistoryHotRegion form.
 	PackHistoryHotWriteRegions() ([]HistoryHotRegion, error)