diff --git a/lightningd/channel/channel.c b/lightningd/channel/channel.c
index 05c60b471..901f65342 100644
--- a/lightningd/channel/channel.c
+++ b/lightningd/channel/channel.c
@@ -83,6 +83,7 @@ struct peer {
 	 */
 	u64 htlc_id;
 
+	struct sha256_double chain_hash;
 	struct channel_id channel_id;
 	struct channel *channel;
 
@@ -2004,6 +2005,7 @@ static void init_channel(struct peer *peer)
 
 	msg = wire_sync_read(peer, REQ_FD);
 	if (!fromwire_channel_init(peer, msg, NULL,
+				   &peer->chain_hash,
 				   &funding_txid, &funding_txout,
 				   &funding_satoshi,
 				   &peer->conf[LOCAL], &peer->conf[REMOTE],
diff --git a/lightningd/channel/channel_wire.csv b/lightningd/channel/channel_wire.csv
index 9e9c45f9b..980302660 100644
--- a/lightningd/channel/channel_wire.csv
+++ b/lightningd/channel/channel_wire.csv
@@ -22,6 +22,7 @@ channel_normal_operation,1001
 
 # Begin!  (passes gossipd-client fd)
 channel_init,1
+channel_init,,chain_hash,struct sha256_double
 channel_init,,funding_txid,struct sha256_double
 channel_init,,funding_txout,2
 channel_init,,funding_satoshi,8
diff --git a/lightningd/peer_control.c b/lightningd/peer_control.c
index 503f8b018..abae20c84 100644
--- a/lightningd/peer_control.c
+++ b/lightningd/peer_control.c
@@ -1643,6 +1643,7 @@ static bool peer_start_channeld(struct peer *peer,
 		shutdown_scriptpubkey = NULL;
 
 	initmsg = towire_channel_init(tmpctx,
+				      &peer->ld->chainparams->genesis_blockhash,
 				      peer->funding_txid,
 				      peer->funding_outnum,
 				      peer->funding_satoshi,