diff --git a/lightningd/channel_control.c b/lightningd/channel_control.c
index e35dde322..7fcb25580 100644
--- a/lightningd/channel_control.c
+++ b/lightningd/channel_control.c
@@ -392,7 +392,8 @@ void peer_start_channeld(struct channel *channel,
 				  HSM_CAP_SIGN_GOSSIP
 				  | HSM_CAP_ECDH
 				  | HSM_CAP_COMMITMENT_POINT
-				  | HSM_CAP_SIGN_REMOTE_TX);
+				  | HSM_CAP_SIGN_REMOTE_TX
+				  | HSM_CAP_SIGN_ONCHAIN_TX);
 
 	channel_set_owner(channel,
 			  new_channel_subd(ld,