diff --git a/lightningd/dual_open_control.c b/lightningd/dual_open_control.c
index 984c0bb5a..57e1049ad 100644
--- a/lightningd/dual_open_control.c
+++ b/lightningd/dual_open_control.c
@@ -1807,6 +1807,11 @@ json_openchannel_bump(struct command *cmd,
 				    " Current state %s, expected state %s",
 				    channel_state_name(channel),
 				    channel_state_str(DUALOPEND_AWAITING_LOCKIN));
+	if (channel->opener != LOCAL)
+		return command_fail(cmd, FUNDING_STATE_INVALID,
+				    "Only the channel opener can initiate an"
+				    " RBF attempt");
+
 	/* Ok, we're kosher to start */
 	channel->open_attempt = oa = new_channel_open_attempt(channel);
 	oa->funding = *amount;
diff --git a/openingd/dualopend.c b/openingd/dualopend.c
index 931db0dcd..0096f2c44 100644
--- a/openingd/dualopend.c
+++ b/openingd/dualopend.c
@@ -2744,6 +2744,10 @@ static void rbf_remote_start(struct state *state, const u8 *rbf_msg)
 	check_channel_id(state, &cid, &state->channel_id);
 	peer_billboard(false, "channel rbf: init received from peer");
 
+	if (state->our_role == TX_INITIATOR)
+		rbf_failed(state, "Only the channel initiator is allowed"
+			   " to initiate RBF");
+
 	/* Have you sent us everything we need yet ? */
 	if (!state->tx_state->remote_funding_sigs_rcvd)
 		rbf_failed(state, "Last funding attempt not complete:"