diff --git a/src/commonMain/kotlin/fr/acinq/lightning/channel/InteractiveTx.kt b/src/commonMain/kotlin/fr/acinq/lightning/channel/InteractiveTx.kt
index e3884fd04..f22d465da 100644
--- a/src/commonMain/kotlin/fr/acinq/lightning/channel/InteractiveTx.kt
+++ b/src/commonMain/kotlin/fr/acinq/lightning/channel/InteractiveTx.kt
@@ -881,6 +881,7 @@ data class InteractiveTxSigningSession(
                     TlvStream.empty()
                 }
                 val commitSig = CommitSig(channelParams.channelId, localSigOfRemoteCommitTx, localSigsOfRemoteHtlcTxs, alternativeSigs)
+                // We haven't received the remote commit_sig: we don't have local htlc txs yet.
                 val unsignedLocalCommit = UnsignedLocalCommit(localCommitmentIndex, firstCommitTx.localSpec, firstCommitTx.localCommitTx, listOf())
                 val remoteCommit = RemoteCommit(remoteCommitmentIndex, firstCommitTx.remoteSpec, firstCommitTx.remoteCommitTx.tx.txid, remotePerCommitmentPoint)
                 val signedFundingTx = sharedTx.sign(keyManager, fundingParams, channelParams.localParams, channelParams.remoteParams.nodeId)