diff --git a/extern/storage-sealing/gomock_reflect_442895147/prog.go b/extern/storage-sealing/gomock_reflect_442895147/prog.go
new file mode 100644
index 000000000..9ad67db07
--- /dev/null
+++ b/extern/storage-sealing/gomock_reflect_442895147/prog.go
@@ -0,0 +1,66 @@
+
+package main
+
+import (
+	"encoding/gob"
+	"flag"
+	"fmt"
+	"os"
+	"path"
+	"reflect"
+
+	"github.com/golang/mock/mockgen/model"
+
+	pkg_ "github.com/filecoin-project/lotus/extern/storage-sealing"
+)
+
+var output = flag.String("output", "", "The output file name, or empty to use stdout.")
+
+func main() {
+	flag.Parse()
+
+	its := []struct{
+		sym string
+		typ reflect.Type
+	}{
+		
+		{ "Context", reflect.TypeOf((*pkg_.Context)(nil)).Elem()},
+		
+	}
+	pkg := &model.Package{
+		// NOTE: This behaves contrary to documented behaviour if the
+		// package name is not the final component of the import path.
+		// The reflect package doesn't expose the package name, though.
+		Name: path.Base("github.com/filecoin-project/lotus/extern/storage-sealing"),
+	}
+
+	for _, it := range its {
+		intf, err := model.InterfaceFromInterfaceType(it.typ)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "Reflection: %v\n", err)
+			os.Exit(1)
+		}
+		intf.Name = it.sym
+		pkg.Interfaces = append(pkg.Interfaces, intf)
+	}
+
+	outfile := os.Stdout
+	if len(*output) != 0 {
+		var err error
+		outfile, err = os.Create(*output)
+		if err != nil {
+			fmt.Fprintf(os.Stderr, "failed to open output file %q", *output)
+		}
+		defer func() {
+			if err := outfile.Close(); err != nil {
+				fmt.Fprintf(os.Stderr, "failed to close output file %q", *output)
+				os.Exit(1)
+			}
+		}()
+	}
+
+	if err := gob.NewEncoder(outfile).Encode(pkg); err != nil {
+		fmt.Fprintf(os.Stderr, "gob encode: %v\n", err)
+		os.Exit(1)
+	}
+}
diff --git a/extern/storage-sealing/input.go b/extern/storage-sealing/input.go
index 910db382b..a7428ad07 100644
--- a/extern/storage-sealing/input.go
+++ b/extern/storage-sealing/input.go
@@ -496,6 +496,10 @@ func (m *Sealing) tryCreateDealSector(ctx context.Context, sp abi.RegisteredSeal
 		return xerrors.Errorf("getting storage config: %w", err)
 	}
 
+	if !cfg.MakeNewSectorForDeals {
+		return nil
+	}
+
 	if cfg.MaxSealingSectorsForDeals > 0 && m.stats.curSealing() >= cfg.MaxSealingSectorsForDeals {
 		return nil
 	}
diff --git a/extern/storage-sealing/sealiface/config.go b/extern/storage-sealing/sealiface/config.go
index d8a12283c..852034aa7 100644
--- a/extern/storage-sealing/sealiface/config.go
+++ b/extern/storage-sealing/sealiface/config.go
@@ -18,6 +18,8 @@ type Config struct {
 	// includes failed, 0 = no limit
 	MaxSealingSectorsForDeals uint64
 
+	MakeNewSectorForDeals bool
+
 	WaitDealsDelay time.Duration
 
 	CommittedCapacitySectorLifetime time.Duration
diff --git a/node/config/def.go b/node/config/def.go
index 644c28bea..eded665ff 100644
--- a/node/config/def.go
+++ b/node/config/def.go
@@ -156,6 +156,7 @@ func DefaultStorageMiner() *StorageMiner {
 			ConsiderVerifiedStorageDeals:   true,
 			ConsiderUnverifiedStorageDeals: true,
 			PieceCidBlocklist:              []cid.Cid{},
+			MakeNewSectorForDeals:          true,
 			// TODO: It'd be nice to set this based on sector size
 			MaxDealStartDelay:               Duration(time.Hour * 24 * 14),
 			ExpectedSealDuration:            Duration(time.Hour * 24),
diff --git a/node/config/types.go b/node/config/types.go
index 715f48248..db38ccd23 100644
--- a/node/config/types.go
+++ b/node/config/types.go
@@ -120,6 +120,8 @@ type DealmakingConfig struct {
 	// This includes the time the deal will need to get transferred and published
 	// before being assigned to a sector
 	ExpectedSealDuration Duration
+	// Whether new sectors are sealed to pack incoming deals
+	MakeNewSectorForDeals bool
 	// Maximum amount of time proposed deal StartEpoch can be in future
 	MaxDealStartDelay Duration
 	// When a deal is ready to publish, the amount of time to wait for more
diff --git a/node/modules/storageminer.go b/node/modules/storageminer.go
index da1a016f7..acae45e90 100644
--- a/node/modules/storageminer.go
+++ b/node/modules/storageminer.go
@@ -925,6 +925,8 @@ func ToSealingConfig(cfg *config.StorageMiner) sealiface.Config {
 		MaxWaitDealsSectors:             cfg.Sealing.MaxWaitDealsSectors,
 		MaxSealingSectors:               cfg.Sealing.MaxSealingSectors,
 		MaxSealingSectorsForDeals:       cfg.Sealing.MaxSealingSectorsForDeals,
+		StartEpochSealingBuffer:         abi.ChainEpoch(cfg.Dealmaking.StartEpochSealingBuffer),
+		MakeNewSectorForDeals:           true,
 		CommittedCapacitySectorLifetime: time.Duration(cfg.Sealing.CommittedCapacitySectorLifetime),
 		WaitDealsDelay:                  time.Duration(cfg.Sealing.WaitDealsDelay),
 		AlwaysKeepUnsealedCopy:          cfg.Sealing.AlwaysKeepUnsealedCopy,
@@ -950,8 +952,6 @@ func ToSealingConfig(cfg *config.StorageMiner) sealiface.Config {
 		TerminateBatchMax:  cfg.Sealing.TerminateBatchMax,
 		TerminateBatchMin:  cfg.Sealing.TerminateBatchMin,
 		TerminateBatchWait: time.Duration(cfg.Sealing.TerminateBatchWait),
-
-		StartEpochSealingBuffer: abi.ChainEpoch(cfg.Dealmaking.StartEpochSealingBuffer),
 	}
 }