diff --git a/builtin/methods.go b/builtin/methods.go
index e6cee9dd..3cc0c620 100644
--- a/builtin/methods.go
+++ b/builtin/methods.go
@@ -212,7 +212,7 @@ var MethodsMiner = struct {
 	ReportConsensusFault               abi.MethodNum
 	WithdrawBalance                    abi.MethodNum
 	WithdrawBalanceExported            abi.MethodNum
-	ConfirmSectorProofsValid           abi.MethodNum
+	InternalSectorSetupForPreseal      abi.MethodNum
 	ChangeMultiaddrs                   abi.MethodNum
 	ChangeMultiaddrsExported           abi.MethodNum
 	CompactPartitions                  abi.MethodNum
diff --git a/builtin/v14/gen/gen.go b/builtin/v14/gen/gen.go
index c78a9686..84dfeb41 100644
--- a/builtin/v14/gen/gen.go
+++ b/builtin/v14/gen/gen.go
@@ -181,7 +181,7 @@ func main() {
 		miner.ApplyRewardParams{},
 		miner.ReportConsensusFaultParams{},
 		miner.WithdrawBalanceParams{},
-		miner.ConfirmSectorProofsParams{},
+		miner.InternalSectorSetupForPresealParams{},
 		miner.ChangeMultiaddrsParams{},
 		miner.CompactPartitionsParams{},
 		miner.CompactSectorNumbersParams{},
diff --git a/builtin/v14/miner/cbor_gen.go b/builtin/v14/miner/cbor_gen.go
index 9d9ce934..8a478e7a 100644
--- a/builtin/v14/miner/cbor_gen.go
+++ b/builtin/v14/miner/cbor_gen.go
@@ -4986,9 +4986,9 @@ func (t *WithdrawBalanceParams) UnmarshalCBOR(r io.Reader) (err error) {
 	return nil
 }
 
-var lengthBufConfirmSectorProofsParams = []byte{132}
+var lengthBufInternalSectorSetupForPresealParams = []byte{132}
 
-func (t *ConfirmSectorProofsParams) MarshalCBOR(w io.Writer) error {
+func (t *InternalSectorSetupForPresealParams) MarshalCBOR(w io.Writer) error {
 	if t == nil {
 		_, err := w.Write(cbg.CborNull)
 		return err
@@ -4996,7 +4996,7 @@ func (t *ConfirmSectorProofsParams) MarshalCBOR(w io.Writer) error {
 
 	cw := cbg.NewCborWriter(w)
 
-	if _, err := cw.Write(lengthBufConfirmSectorProofsParams); err != nil {
+	if _, err := cw.Write(lengthBufInternalSectorSetupForPresealParams); err != nil {
 		return err
 	}
 
@@ -5033,8 +5033,8 @@ func (t *ConfirmSectorProofsParams) MarshalCBOR(w io.Writer) error {
 	return nil
 }
 
-func (t *ConfirmSectorProofsParams) UnmarshalCBOR(r io.Reader) (err error) {
-	*t = ConfirmSectorProofsParams{}
+func (t *InternalSectorSetupForPresealParams) UnmarshalCBOR(r io.Reader) (err error) {
+	*t = InternalSectorSetupForPresealParams{}
 
 	cr := cbg.NewCborReader(r)
 
diff --git a/builtin/v14/miner/methods.go b/builtin/v14/miner/methods.go
index 4729cf0f..c7bba158 100644
--- a/builtin/v14/miner/methods.go
+++ b/builtin/v14/miner/methods.go
@@ -28,8 +28,8 @@ var Methods = map[abi.MethodNum]builtin.MethodMeta{
 	15: {"ReportConsensusFault", *new(func(*ReportConsensusFaultParams) *abi.EmptyValue)},     // ReportConsensusFault
 	16: {"WithdrawBalance", *new(func(*WithdrawBalanceParams) *abi.TokenAmount)},              // WithdrawBalance
 	builtin.MustGenerateFRCMethodNum("WithdrawBalance"): {"WithdrawBalanceExported", *new(func(*WithdrawBalanceParams) *abi.TokenAmount)}, // WithdrawBalanceExported
-	17: {"ConfirmSectorProofsValid", *new(func(*ConfirmSectorProofsParams) *abi.EmptyValue)}, // ConfirmSectorProofsValid
-	18: {"ChangeMultiaddrs", *new(func(*ChangeMultiaddrsParams) *abi.EmptyValue)},            // ChangeMultiaddrs
+	17: {"InternalSectorSetupForPreseal", *new(func(*InternalSectorSetupForPresealParams) *abi.EmptyValue)}, // InternalSectorSetupForPreseal
+	18: {"ChangeMultiaddrs", *new(func(*ChangeMultiaddrsParams) *abi.EmptyValue)},                           // ChangeMultiaddrs
 	builtin.MustGenerateFRCMethodNum("ChangeMultiaddrs"): {"ChangeMultiaddrsExported", *new(func(*ChangeMultiaddrsParams) *abi.EmptyValue)}, // ChangeMultiaddrsExported
 	19: {"CompactPartitions", *new(func(*CompactPartitionsParams) *abi.EmptyValue)},       // CompactPartitions
 	20: {"CompactSectorNumbers", *new(func(*CompactSectorNumbersParams) *abi.EmptyValue)}, // CompactSectorNumbers
diff --git a/builtin/v14/miner/miner_types.go b/builtin/v14/miner/miner_types.go
index b1515451..6b913bf9 100644
--- a/builtin/v14/miner/miner_types.go
+++ b/builtin/v14/miner/miner_types.go
@@ -347,7 +347,7 @@ type ApplyRewardParams struct {
 	Penalty abi.TokenAmount
 }
 
-type ConfirmSectorProofsParams struct {
+type InternalSectorSetupForPresealParams struct {
 	Sectors                 []abi.SectorNumber
 	RewardSmoothed          smoothing.FilterEstimate
 	RewardBaselinePower     abi.StoragePower