diff --git a/cmd/lotus-shed/mempool-stats.go b/cmd/lotus-shed/mempool-stats.go
index fc7159d2a..b21948065 100644
--- a/cmd/lotus-shed/mempool-stats.go
+++ b/cmd/lotus-shed/mempool-stats.go
@@ -28,7 +28,7 @@ var (
 )
 
 var (
-	LeTag, _ = tag.NewKey("le")
+	LeTag, _ = tag.NewKey("quantile")
 )
 
 var (