diff --git a/gossipd/test/run-find_route.c b/gossipd/test/run-find_route.c
index b08cd042f..b7ed6d482 100644
--- a/gossipd/test/run-find_route.c
+++ b/gossipd/test/run-find_route.c
@@ -86,7 +86,7 @@ static struct half_chan *add_connection(struct routing_state *rstate,
 
 /* Returns chan connecting from and to: *idx set to refer
  * to connection with src=from, dst=to */
-static struct chan *find_channel(struct routing_state *rstate,
+static struct chan *find_channel(struct routing_state *rstate UNUSED,
 					    const struct node *from,
 					    const struct node *to,
 					    int *idx)
diff --git a/lightningd/closing_control.c b/lightningd/closing_control.c
index 4fddaf040..fc5e62d28 100644
--- a/lightningd/closing_control.c
+++ b/lightningd/closing_control.c
@@ -112,7 +112,7 @@ static void peer_closing_complete(struct channel *channel, const u8 *msg)
 	channel_set_state(channel, CLOSINGD_SIGEXCHANGE, CLOSINGD_COMPLETE);
 }
 
-static unsigned closing_msg(struct subd *sd, const u8 *msg, const int *fds)
+static unsigned closing_msg(struct subd *sd, const u8 *msg, const int *fds UNUSED)
 {
 	enum closing_wire_type t = fromwire_peektype(msg);
 
diff --git a/lightningd/onchain_control.c b/lightningd/onchain_control.c
index 8722d9379..49c8686fb 100644
--- a/lightningd/onchain_control.c
+++ b/lightningd/onchain_control.c
@@ -240,7 +240,7 @@ static void onchain_add_utxo(struct channel *channel, const u8 *msg)
 	wallet_add_utxo(channel->peer->ld->wallet, u, p2wpkh);
 }
 
-static unsigned int onchain_msg(struct subd *sd, const u8 *msg, const int *fds)
+static unsigned int onchain_msg(struct subd *sd, const u8 *msg, const int *fds UNUSED)
 {
 	enum onchain_wire_type t = fromwire_peektype(msg);
 
@@ -324,12 +324,12 @@ static bool tell_if_missing(const struct channel *channel,
 
 /* Only error onchaind can get is if it dies. */
 static void onchain_error(struct channel *channel,
-			  int peer_fd, int gossip_fd,
-			  const struct crypto_state *cs,
-			  u64 gossip_index,
-			  const struct channel_id *channel_id,
+			  int peer_fd UNUSED, int gossip_fd UNUSED,
+			  const struct crypto_state *cs UNUSED,
+			  u64 gossip_index UNUSED,
+			  const struct channel_id *channel_id UNUSED,
 			  const char *desc,
-			  const u8 *err_for_them)
+			  const u8 *err_for_them UNUSED)
 {
 	/* FIXME: re-launch? */
 	log_broken(channel->log, "%s", desc);
@@ -341,7 +341,7 @@ static void onchain_error(struct channel *channel,
  * onchaind (like any other owner), and restart */
 enum watch_result funding_spent(struct channel *channel,
 				const struct bitcoin_tx *tx,
-				size_t input_num,
+				size_t input_num UNUSED,
 				const struct block *block)
 {
 	u8 *msg;
diff --git a/lightningd/opening_control.c b/lightningd/opening_control.c
index 232dfa53b..4c1b664f2 100644
--- a/lightningd/opening_control.c
+++ b/lightningd/opening_control.c
@@ -484,7 +484,7 @@ static void opening_channel_errmsg(struct uncommitted_channel *uc,
 				   int peer_fd, int gossip_fd,
 				   const struct crypto_state *cs,
 				   u64 gossip_index,
-				   const struct channel_id *channel_id,
+				   const struct channel_id *channel_id UNUSED,
 				   const char *desc,
 				   const u8 *err_for_them)
 {
@@ -616,7 +616,7 @@ u8 *peer_accept_channel(struct lightningd *ld,
 			const struct wireaddr *addr,
 			const struct crypto_state *cs,
 			u64 gossip_index,
-			const u8 *gfeatures, const u8 *lfeatures,
+			const u8 *gfeatures UNUSED, const u8 *lfeatures UNUSED,
 			int peer_fd, int gossip_fd,
 			const struct channel_id *channel_id,
 			const u8 *open_msg)
@@ -698,7 +698,7 @@ static void peer_offer_channel(struct lightningd *ld,
 			       const struct wireaddr *addr,
 			       const struct crypto_state *cs,
 			       u64 gossip_index,
-			       const u8 *gfeatures, const u8 *lfeatures,
+			       const u8 *gfeatures UNUSED, const u8 *lfeatures UNUSED,
 			       int peer_fd, int gossip_fd)
 {
 	u8 *msg;
diff --git a/wallet/invoices.c b/wallet/invoices.c
index 70d71eaf6..118281b44 100644
--- a/wallet/invoices.c
+++ b/wallet/invoices.c
@@ -410,7 +410,7 @@ bool invoices_iterate(struct invoices *invoices,
 	}
 }
 void invoices_iterator_deref(const tal_t *ctx,
-			     struct invoices *invoices,
+			     struct invoices *invoices UNUSED,
 			     const struct invoice_iterator *it,
 			     struct invoice_details *details)
 {