diff --git a/gossipd/test/run-bench-find_route.c b/gossipd/test/run-bench-find_route.c
index a60f3696b..96f6a8da2 100644
--- a/gossipd/test/run-bench-find_route.c
+++ b/gossipd/test/run-bench-find_route.c
@@ -141,7 +141,7 @@ const char *wire_type_name(int e UNNEEDED)
 /* AUTOGENERATED MOCKS END */
 
 /* Updates existing route if required. */
-static struct half_chan *add_connection(struct routing_state *rstate,
+static void add_connection(struct routing_state *rstate,
 					const struct pubkey *from,
 					const struct pubkey *to,
 					u32 base_fee, s32 proportional_fee,
@@ -161,7 +161,6 @@ static struct half_chan *add_connection(struct routing_state *rstate,
 	c->proportional_fee = proportional_fee;
 	c->delay = delay;
 	c->flags = get_channel_direction(from, to);
-	return c;
 }
 
 static struct pubkey nodeid(size_t n)
diff --git a/gossipd/test/run-find_route.c b/gossipd/test/run-find_route.c
index 6452f22cf..f49872869 100644
--- a/gossipd/test/run-find_route.c
+++ b/gossipd/test/run-find_route.c
@@ -103,7 +103,7 @@ const char *wire_type_name(int e UNNEEDED)
 /* AUTOGENERATED MOCKS END */
 
 /* Updates existing route if required. */
-static struct half_chan *add_connection(struct routing_state *rstate,
+static void add_connection(struct routing_state *rstate,
 					      const struct pubkey *from,
 					      const struct pubkey *to,
 					      u32 base_fee, s32 proportional_fee,
@@ -128,7 +128,6 @@ static struct half_chan *add_connection(struct routing_state *rstate,
 	c->proportional_fee = proportional_fee;
 	c->delay = delay;
 	c->flags = get_channel_direction(from, to);
-	return c;
 }
 
 /* Returns chan connecting from and to: *idx set to refer