diff --git a/storagemarket/impl/providerstates/provider_states.go b/storagemarket/impl/providerstates/provider_states.go
index 60794ce6..35cc52ab 100644
--- a/storagemarket/impl/providerstates/provider_states.go
+++ b/storagemarket/impl/providerstates/provider_states.go
@@ -309,7 +309,7 @@ func HandoffDeal(ctx fsm.Context, environment ProviderDealEnvironment, deal stor
 		}
 
 		// Hand the deal off to the process that adds it to a sector
-		packingInfo, err = handoffDeal(ctx.Context(), environment, deal, file, uint64(file.Size()))
+		packingInfo, err = handoffDeal(ctx.Context(), environment, deal, file, uint64(file.Size()), deal.Proposal.PieceSize)
 		if err != nil {
 			err = xerrors.Errorf("packing piece at path %s: %w", deal.PiecePath, err)
 			return ctx.Trigger(storagemarket.ProviderEventDealHandoffFailed, err)
@@ -324,7 +324,7 @@ func HandoffDeal(ctx fsm.Context, environment ProviderDealEnvironment, deal stor
 
 		// Hand the deal off to the process that adds it to a sector
 		var packingErr error
-		packingInfo, packingErr = handoffDeal(ctx.Context(), environment, deal, pieceReader, pieceSize)
+		packingInfo, packingErr = handoffDeal(ctx.Context(), environment, deal, pieceReader, pieceSize, deal.Proposal.PieceSize)
 
 		// Close the read side of the pipe
 		err = pieceReader.Close()
@@ -360,8 +360,8 @@ func HandoffDeal(ctx fsm.Context, environment ProviderDealEnvironment, deal stor
 	return ctx.Trigger(storagemarket.ProviderEventDealHandedOff)
 }
 
-func handoffDeal(ctx context.Context, environment ProviderDealEnvironment, deal storagemarket.MinerDeal, reader io.Reader, size uint64) (*storagemarket.PackingResult, error) {
-	paddedReader, paddedSize := padreader.New(reader, size)
+func handoffDeal(ctx context.Context, environment ProviderDealEnvironment, deal storagemarket.MinerDeal, reader io.Reader, payloadSize uint64, pieceSize abi.PaddedPieceSize) (*storagemarket.PackingResult, error) {
+	paddedReader, _ := padreader.New(reader, payloadSize)
 	return environment.Node().OnDealComplete(
 		ctx,
 		storagemarket.MinerDeal{
@@ -374,7 +374,7 @@ func handoffDeal(ctx context.Context, environment ProviderDealEnvironment, deal
 			DealID:             deal.DealID,
 			FastRetrieval:      deal.FastRetrieval,
 		},
-		paddedSize,
+		pieceSize.Unpadded(),
 		paddedReader,
 	)
 }