diff --git a/contractcourt/chain_watcher.go b/contractcourt/chain_watcher.go
index b17b40aca..f1733ad1f 100644
--- a/contractcourt/chain_watcher.go
+++ b/contractcourt/chain_watcher.go
@@ -12,6 +12,7 @@ import (
 	"github.com/btcsuite/btcd/btcutil"
 	"github.com/btcsuite/btcd/chaincfg"
 	"github.com/btcsuite/btcd/chaincfg/chainhash"
+	"github.com/btcsuite/btcd/mempool"
 	"github.com/btcsuite/btcd/txscript"
 	"github.com/btcsuite/btcd/wire"
 	"github.com/davecgh/go-spew/spew"
@@ -689,7 +690,10 @@ func (c *chainWatcher) closeObserver(spendNtfn *chainntnfs.SpendEvent) {
 		// sequence number that's finalized. This won't happen with
 		// regular commitment transactions due to the state hint
 		// encoding scheme.
-		if commitTxBroadcast.TxIn[0].Sequence == wire.MaxTxInSequenceNum {
+		switch commitTxBroadcast.TxIn[0].Sequence {
+		case wire.MaxTxInSequenceNum:
+			fallthrough
+		case mempool.MaxRBFSequence:
 			// TODO(roasbeef): rare but possible, need itest case
 			// for
 			err := c.dispatchCooperativeClose(commitSpend)