diff --git a/contractcourt/chain_arbitrator.go b/contractcourt/chain_arbitrator.go
index 3bfbafa1..db401735 100644
--- a/contractcourt/chain_arbitrator.go
+++ b/contractcourt/chain_arbitrator.go
@@ -105,7 +105,7 @@ type ChainArbitratorConfig struct {
 	// absolute/relative item block.
 	IncubateOutputs func(wire.OutPoint, *lnwallet.CommitOutputResolution,
 		*lnwallet.OutgoingHtlcResolution,
-		*lnwallet.IncomingHtlcResolution) error
+		*lnwallet.IncomingHtlcResolution, uint32) error
 
 	// PreimageDB is a global store of all known pre-images. We'll use this
 	// to decide if we should broadcast a commitment transaction to claim
diff --git a/contractcourt/channel_arbitrator.go b/contractcourt/channel_arbitrator.go
index 55a6e238..ae3fe967 100644
--- a/contractcourt/channel_arbitrator.go
+++ b/contractcourt/channel_arbitrator.go
@@ -648,7 +648,7 @@ func (c *ChannelArbitrator) stateStep(triggerHeight uint32,
 
 			err = c.cfg.IncubateOutputs(
 				c.cfg.ChanPoint, commitRes,
-				nil, nil,
+				nil, nil, triggerHeight,
 			)
 			if err != nil {
 				// TODO(roasbeef): check for AlreadyExists errors
diff --git a/contractcourt/contract_resolvers.go b/contractcourt/contract_resolvers.go
index 7b8be486..3ecc6be9 100644
--- a/contractcourt/contract_resolvers.go
+++ b/contractcourt/contract_resolvers.go
@@ -152,7 +152,10 @@ func (h *htlcTimeoutResolver) Resolve() (ContractResolver, error) {
 		log.Tracef("%T(%v): incubating htlc output", h,
 			h.htlcResolution.ClaimOutpoint)
 
-		err := h.IncubateOutputs(h.ChanPoint, nil, &h.htlcResolution, nil)
+		err := h.IncubateOutputs(
+			h.ChanPoint, nil, &h.htlcResolution, nil,
+			h.broadcastHeight,
+		)
 		if err != nil {
 			return nil, err
 		}
@@ -568,7 +571,10 @@ func (h *htlcSuccessResolver) Resolve() (ContractResolver, error) {
 		log.Infof("%T(%x): incubating incoming htlc output",
 			h, h.payHash[:])
 
-		err := h.IncubateOutputs(h.ChanPoint, nil, nil, &h.htlcResolution)
+		err := h.IncubateOutputs(
+			h.ChanPoint, nil, nil, &h.htlcResolution,
+			h.broadcastHeight,
+		)
 		if err != nil {
 			return nil, err
 		}
diff --git a/server.go b/server.go
index 525d6d31..4c9ce4c0 100644
--- a/server.go
+++ b/server.go
@@ -628,7 +628,8 @@ func newServer(listenAddrs []net.Addr, chanDB *channeldb.DB, cc *chainControl,
 		IncubateOutputs: func(chanPoint wire.OutPoint,
 			commitRes *lnwallet.CommitOutputResolution,
 			outHtlcRes *lnwallet.OutgoingHtlcResolution,
-			inHtlcRes *lnwallet.IncomingHtlcResolution) error {
+			inHtlcRes *lnwallet.IncomingHtlcResolution,
+			broadcastHeight uint32) error {
 
 			var (
 				inRes  []lnwallet.IncomingHtlcResolution
@@ -643,6 +644,7 @@ func newServer(listenAddrs []net.Addr, chanDB *channeldb.DB, cc *chainControl,
 
 			return s.utxoNursery.IncubateOutputs(
 				chanPoint, commitRes, outRes, inRes,
+				broadcastHeight,
 			)
 		},
 		PreimageDB:   s.witnessBeacon,
diff --git a/utxonursery.go b/utxonursery.go
index f3bf362e..5c801dce 100644
--- a/utxonursery.go
+++ b/utxonursery.go
@@ -343,7 +343,8 @@ func (u *utxoNursery) Stop() error {
 func (u *utxoNursery) IncubateOutputs(chanPoint wire.OutPoint,
 	commitResolution *lnwallet.CommitOutputResolution,
 	outgoingHtlcs []lnwallet.OutgoingHtlcResolution,
-	incomingHtlcs []lnwallet.IncomingHtlcResolution) error {
+	incomingHtlcs []lnwallet.IncomingHtlcResolution,
+	broadcastHeight uint32) error {
 
 	numHtlcs := len(incomingHtlcs) + len(outgoingHtlcs)
 	var (
@@ -469,7 +470,9 @@ func (u *utxoNursery) IncubateOutputs(chanPoint wire.OutPoint,
 	// kindergarten bucket.
 	if len(kidOutputs) != 0 {
 		for _, kidOutput := range kidOutputs {
-			err := u.registerPreschoolConf(&kidOutput, u.bestHeight)
+			err := u.registerPreschoolConf(
+				&kidOutput, broadcastHeight,
+			)
 			if err != nil {
 				return err
 			}
diff --git a/utxonursery_test.go b/utxonursery_test.go
index adff6d3e..5410a55f 100644
--- a/utxonursery_test.go
+++ b/utxonursery_test.go
@@ -336,6 +336,8 @@ func init() {
 }
 
 func TestKidOutputSerialization(t *testing.T) {
+	t.Parallel()
+
 	for i, kid := range kidOutputs {
 		var b bytes.Buffer
 		if err := kid.Encode(&b); err != nil {
@@ -358,6 +360,8 @@ func TestKidOutputSerialization(t *testing.T) {
 }
 
 func TestBabyOutputSerialization(t *testing.T) {
+	t.Parallel()
+
 	for i, baby := range babyOutputs {
 		var b bytes.Buffer
 		if err := baby.Encode(&b); err != nil {