diff --git a/wire/extracted_peer_12_splice_update.patch b/wire/extracted_peer_12_splice_update.patch
index 817acd8ce03e..96a8a8f88ebd 100644
--- a/wire/extracted_peer_12_splice_update.patch
+++ b/wire/extracted_peer_12_splice_update.patch
@@ -22,11 +22,12 @@ index 9abcb0e64..e2aae8efb 100644
  msgtype,commitment_signed,132
  msgdata,commitment_signed,channel_id,channel_id,
  msgdata,commitment_signed,signature,signature,
-@@ -309,6 +309,5 @@ msgdata,commitment_signed,num_htlcs,u16,
+@@ -309,7 +309,6 @@ msgdata,commitment_signed,num_htlcs,u16,
  msgdata,commitment_signed,htlc_signature,signature,num_htlcs
  msgdata,commitment_signed,splice_channel_id,commitment_signed_tlvs,
- tlvtype,commitment_signed_tlvs,splice_info,0
+-tlvtype,commitment_signed_tlvs,splice_info,0
 -tlvdata,commitment_signed_tlvs,splice_info,batch_size,u16,
++tlvtype,commitment_signed_tlvs,splice_info,1
  tlvdata,commitment_signed_tlvs,splice_info,funding_txid,sha256,
  msgtype,revoke_and_ack,133
  msgdata,revoke_and_ack,channel_id,channel_id,
diff --git a/wire/peer_wire.csv b/wire/peer_wire.csv
index e2aae8efb6bf..f682633a3af8 100644
--- a/wire/peer_wire.csv
+++ b/wire/peer_wire.csv
@@ -308,7 +308,7 @@ msgdata,commitment_signed,signature,signature,
 msgdata,commitment_signed,num_htlcs,u16,
 msgdata,commitment_signed,htlc_signature,signature,num_htlcs
 msgdata,commitment_signed,splice_channel_id,commitment_signed_tlvs,
-tlvtype,commitment_signed_tlvs,splice_info,0
+tlvtype,commitment_signed_tlvs,splice_info,1
 tlvdata,commitment_signed_tlvs,splice_info,funding_txid,sha256,
 msgtype,revoke_and_ack,133
 msgdata,revoke_and_ack,channel_id,channel_id,