diff --git a/extern/sector-storage/faults.go b/extern/sector-storage/faults.go
index 0fd385250..fdd5f6b7d 100644
--- a/extern/sector-storage/faults.go
+++ b/extern/sector-storage/faults.go
@@ -9,8 +9,6 @@ import (
 
 	"golang.org/x/xerrors"
 
-	"github.com/ipfs/go-cid"
-
 	ffi "github.com/filecoin-project/filecoin-ffi"
 	"github.com/filecoin-project/go-state-types/abi"
 	"github.com/filecoin-project/specs-actors/actors/runtime/proof"
@@ -21,13 +19,11 @@ import (
 
 // FaultTracker TODO: Track things more actively
 type FaultTracker interface {
-	CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef, rg RGetter) (map[abi.SectorID]string, error)
+	CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef, rg storiface.RGetter) (map[abi.SectorID]string, error)
 }
 
-type RGetter func(ctx context.Context, id abi.SectorID) (cid.Cid, error)
-
 // CheckProvable returns unprovable sectors
-func (m *Manager) CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef, rg RGetter) (map[abi.SectorID]string, error) {
+func (m *Manager) CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef, rg storiface.RGetter) (map[abi.SectorID]string, error) {
 	var bad = make(map[abi.SectorID]string)
 
 	ssize, err := pp.SectorSize()
diff --git a/extern/sector-storage/mock/mock.go b/extern/sector-storage/mock/mock.go
index 59d7d0503..47fb2b974 100644
--- a/extern/sector-storage/mock/mock.go
+++ b/extern/sector-storage/mock/mock.go
@@ -405,7 +405,7 @@ func (mgr *SectorMgr) Remove(ctx context.Context, sector storage.SectorRef) erro
 	return nil
 }
 
-func (mgr *SectorMgr) CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, ids []storage.SectorRef) (map[abi.SectorID]string, error) {
+func (mgr *SectorMgr) CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, ids []storage.SectorRef, rg storiface.RGetter) (map[abi.SectorID]string, error) {
 	bad := map[abi.SectorID]string{}
 
 	for _, sid := range ids {
diff --git a/extern/sector-storage/storiface/ffi.go b/extern/sector-storage/storiface/ffi.go
index 95d400e52..31d5b2be5 100644
--- a/extern/sector-storage/storiface/ffi.go
+++ b/extern/sector-storage/storiface/ffi.go
@@ -1,7 +1,9 @@
 package storiface
 
 import (
+	"context"
 	"errors"
+	"github.com/ipfs/go-cid"
 
 	"github.com/filecoin-project/go-state-types/abi"
 )
@@ -15,3 +17,5 @@ func (i UnpaddedByteIndex) Padded() PaddedByteIndex {
 }
 
 type PaddedByteIndex uint64
+
+type RGetter func(ctx context.Context, id abi.SectorID) (cid.Cid, error)
diff --git a/node/impl/storminer.go b/node/impl/storminer.go
index 79dd898d0..a1a6bec24 100644
--- a/node/impl/storminer.go
+++ b/node/impl/storminer.go
@@ -545,7 +545,7 @@ func (sm *StorageMinerAPI) CreateBackup(ctx context.Context, fpath string) error
 }
 
 func (sm *StorageMinerAPI) CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []sto.SectorRef, expensive bool) (map[abi.SectorNumber]string, error) {
-	var rg sectorstorage.RGetter
+	var rg storiface.RGetter
 	if expensive {
 		rg = func(ctx context.Context, id abi.SectorID) (cid.Cid, error) {
 			si, err := sm.Miner.GetSectorInfo(id.Number)
diff --git a/storage/wdpost_run_test.go b/storage/wdpost_run_test.go
index 80b4f66af..65b6b0183 100644
--- a/storage/wdpost_run_test.go
+++ b/storage/wdpost_run_test.go
@@ -27,6 +27,7 @@ import (
 	"github.com/filecoin-project/lotus/build"
 	"github.com/filecoin-project/lotus/chain/actors/builtin/miner"
 	"github.com/filecoin-project/lotus/chain/types"
+	"github.com/filecoin-project/lotus/extern/sector-storage/storiface"
 	"github.com/filecoin-project/lotus/journal"
 )
 
@@ -125,7 +126,7 @@ func (m *mockProver) GenerateWindowPoSt(ctx context.Context, aid abi.ActorID, si
 type mockFaultTracker struct {
 }
 
-func (m mockFaultTracker) CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef) (map[abi.SectorID]string, error) {
+func (m mockFaultTracker) CheckProvable(ctx context.Context, pp abi.RegisteredPoStProof, sectors []storage.SectorRef, rg storiface.RGetter) (map[abi.SectorID]string, error) {
 	// Returns "bad" sectors so just return empty map meaning all sectors are good
 	return map[abi.SectorID]string{}, nil
 }