diff --git a/extern/storage-sealing/input.go b/extern/storage-sealing/input.go
index 5d61762023d..71b3b39d354 100644
--- a/extern/storage-sealing/input.go
+++ b/extern/storage-sealing/input.go
@@ -5,8 +5,6 @@ import (
 	"sort"
 	"time"
 
-	"github.com/filecoin-project/lotus/extern/storage-sealing/lib/nullreader"
-
 	"github.com/filecoin-project/go-padreader"
 	"github.com/filecoin-project/go-statemachine"
 	"github.com/ipfs/go-cid"
@@ -24,6 +22,7 @@ import (
 	"github.com/filecoin-project/lotus/chain/types"
 	sectorstorage "github.com/filecoin-project/lotus/extern/sector-storage"
 	"github.com/filecoin-project/lotus/extern/sector-storage/ffiwrapper"
+	"github.com/filecoin-project/lotus/extern/storage-sealing/lib/nullreader"
 	"github.com/filecoin-project/lotus/extern/storage-sealing/sealiface"
 )
 
diff --git a/extern/storage-sealing/states_sealing.go b/extern/storage-sealing/states_sealing.go
index bc93896884b..d20bbf6964a 100644
--- a/extern/storage-sealing/states_sealing.go
+++ b/extern/storage-sealing/states_sealing.go
@@ -4,8 +4,6 @@ import (
 	"bytes"
 	"context"
 
-	"github.com/filecoin-project/lotus/extern/storage-sealing/lib/nullreader"
-
 	"github.com/ipfs/go-cid"
 	"golang.org/x/xerrors"
 
@@ -23,6 +21,7 @@ import (
 	"github.com/filecoin-project/lotus/chain/actors"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/actors/policy"
+	"github.com/filecoin-project/lotus/extern/storage-sealing/lib/nullreader"
 )
 
 var DealSectorPriority = 1024