Index: ar_extern.c
===================================================================
--- ar_extern.c	(revision 32353)
+++ ar_extern.c	(revision 32354)
@@ -52,6 +52,7 @@
 typedef struct {
 	const char *name;
 	int (*route)(pcb_board_t *pcb, ext_route_scope_t scope, const char *method, int argc, fgw_arg_t *argv);
+	rnd_hid_attribute_t *(*list_conf)(const char *method);
 } ext_router_t;
 
 #include "e_route-rnd.c"
Index: e_route-rnd.c
===================================================================
--- e_route-rnd.c	(revision 32353)
+++ e_route-rnd.c	(revision 32354)
@@ -57,7 +57,13 @@
 	return 0;
 }
 
+static rnd_hid_attribute_t *rtrnd_list_conf(const char *method)
+{
+	return NULL;
+}
+
 static const ext_router_t route_rnd = {
 	"route-rnd",
-	rtrnd_route
+	rtrnd_route,
+	rtrnd_list_conf
 };