diff --git a/cmd/lotus-bench/import.go b/cmd/lotus-bench/import.go
index 00a4d22ef..de3a0ea45 100644
--- a/cmd/lotus-bench/import.go
+++ b/cmd/lotus-bench/import.go
@@ -26,7 +26,9 @@ import (
 	"github.com/filecoin-project/lotus/lib/blockstore"
 	_ "github.com/filecoin-project/lotus/lib/sigs/bls"
 	_ "github.com/filecoin-project/lotus/lib/sigs/secp"
+	metricsprometheus "github.com/ipfs/go-metrics-prometheus"
 	"github.com/ipld/go-car"
+	"github.com/prometheus/client_golang/prometheus/promhttp"
 
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper"
@@ -95,6 +97,7 @@ var importBenchCmd = &cli.Command{
 		},
 	},
 	Action: func(cctx *cli.Context) error {
+		metricsprometheus.Inject()
 		vm.BatchSealVerifyParallelism = cctx.Int("batch-seal-verify-threads")
 		if !cctx.Args().Present() {
 			fmt.Println("must pass car file of chain to benchmark importing")
@@ -108,6 +111,7 @@ var importBenchCmd = &cli.Command{
 		defer cfi.Close() //nolint:errcheck // read only file
 
 		go func() {
+			http.Handle("/debug/metrics/prometheus", promhttp.Handler())
 			http.ListenAndServe("localhost:6060", nil) //nolint:errcheck
 		}()
 
@@ -159,7 +163,6 @@ var importBenchCmd = &cli.Command{
 		}
 		defer bds.Close() //nolint:errcheck
 
-		under := bds
 		bds = measure.New("dsbench", bds)
 
 		bs := blockstore.NewBlockstore(bds)
diff --git a/go.mod b/go.mod
index 2564f87a7..b79d18938 100644
--- a/go.mod
+++ b/go.mod
@@ -81,6 +81,7 @@ require (
 	github.com/ipfs/go-log v1.0.4
 	github.com/ipfs/go-log/v2 v2.1.2-0.20200626104915-0016c0b4b3e4
 	github.com/ipfs/go-merkledag v0.3.2
+	github.com/ipfs/go-metrics-prometheus v0.0.2
 	github.com/ipfs/go-path v0.0.7
 	github.com/ipfs/go-unixfs v0.2.4
 	github.com/ipfs/interface-go-ipfs-core v0.2.3
@@ -115,6 +116,7 @@ require (
 	github.com/multiformats/go-multihash v0.0.14
 	github.com/opentracing/opentracing-go v1.2.0
 	github.com/polydawn/refmt v0.0.0-20190809202753-05966cbd336a
+	github.com/prometheus/client_golang v1.6.0
 	github.com/raulk/clock v1.1.0
 	github.com/stretchr/testify v1.6.1
 	github.com/supranational/blst v0.1.1
diff --git a/go.sum b/go.sum
index f72b5998b..be9682c83 100644
--- a/go.sum
+++ b/go.sum
@@ -632,6 +632,8 @@ github.com/ipfs/go-merkledag v0.3.2 h1:MRqj40QkrWkvPswXs4EfSslhZ4RVPRbxwX11js0t1
 github.com/ipfs/go-merkledag v0.3.2/go.mod h1:fvkZNNZixVW6cKSZ/JfLlON5OlgTXNdRLz0p6QG/I2M=
 github.com/ipfs/go-metrics-interface v0.0.1 h1:j+cpbjYvu4R8zbleSs36gvB7jR+wsL2fGD6n0jO4kdg=
 github.com/ipfs/go-metrics-interface v0.0.1/go.mod h1:6s6euYU4zowdslK0GKHmqaIZ3j/b/tL7HTWtJ4VPgWY=
+github.com/ipfs/go-metrics-prometheus v0.0.2 h1:9i2iljLg12S78OhC6UAiXi176xvQGiZaGVF1CUVdE+s=
+github.com/ipfs/go-metrics-prometheus v0.0.2/go.mod h1:ELLU99AQQNi+zX6GCGm2lAgnzdSH3u5UVlCdqSXnEks=
 github.com/ipfs/go-path v0.0.3/go.mod h1:zIRQUez3LuQIU25zFjC2hpBTHimWx7VK5bjZgRLbbdo=
 github.com/ipfs/go-path v0.0.7 h1:H06hKMquQ0aYtHiHryOMLpQC1qC3QwXwkahcEVD51Ho=
 github.com/ipfs/go-path v0.0.7/go.mod h1:6KTKmeRnBXgqrTvzFrPV3CamxcgvXX/4z79tfAd2Sno=