diff --git a/lightningd/channel.h b/lightningd/channel.h
index a7e00fcaf..8d7fb8f21 100644
--- a/lightningd/channel.h
+++ b/lightningd/channel.h
@@ -40,6 +40,7 @@ struct channel_inflight {
 	const struct funding_info *funding;
 	struct wally_psbt *funding_psbt;
 	bool remote_tx_sigs;
+	bool tx_broadcast;
 
 	/* Commitment tx and sigs */
 	struct bitcoin_tx *last_tx;
diff --git a/lightningd/dual_open_control.c b/lightningd/dual_open_control.c
index cf0ac86c0..e9fa6e380 100644
--- a/lightningd/dual_open_control.c
+++ b/lightningd/dual_open_control.c
@@ -1405,8 +1405,17 @@ static void handle_peer_tx_sigs_sent(struct subd *dualopend,
 	}
 
 	inflight = channel_current_inflight(channel);
-	if (psbt_finalize(inflight->funding_psbt)
-	    && inflight->remote_tx_sigs) {
+
+	/* Once we've sent our sigs to the peer, we're fine
+	 * to broadcast the transaction, even if they haven't
+	 * sent us their tx-sigs yet. They're not allowed to
+	 * send us funding-locked until their tx-sigs has been
+	 * received, but that's no reason not to broadcast.
+	 * Note this only happens if we're the only input-er */
+	if (psbt_finalize(inflight->funding_psbt) &&
+	    !inflight->tx_broadcast) {
+		inflight->tx_broadcast = true;
+
 		wtx = psbt_final_tx(NULL, inflight->funding_psbt);
 		if (!wtx) {
 			channel_internal_error(channel,
@@ -1721,7 +1730,14 @@ static void handle_peer_tx_sigs_msg(struct subd *dualopend,
 	tal_wally_end(inflight->funding_psbt);
 	wallet_inflight_save(ld->wallet, inflight);
 
-	if (psbt_finalize(cast_const(struct wally_psbt *, inflight->funding_psbt))) {
+	/* It's possible we haven't sent them our (empty) tx-sigs yet,
+	 * but we should be sending it soon... */
+	if (psbt_finalize(cast_const(struct wally_psbt *,
+			  inflight->funding_psbt))
+	    && !inflight->tx_broadcast) {
+		inflight->tx_broadcast = true;
+
+		/* Saves the now finalized version of the psbt */
 		wallet_inflight_save(ld->wallet, inflight);
 		wtx = psbt_final_tx(NULL, inflight->funding_psbt);
 		if (!wtx) {