Index: usr.sbin/npf/npfctl/npf_build.c
===================================================================
RCS file: /cvsroot/src/usr.sbin/npf/npfctl/npf_build.c,v
retrieving revision 1.59
diff -p -u -r1.59 npf_build.c
--- usr.sbin/npf/npfctl/npf_build.c	1 Jul 2025 19:55:15 -0000	1.59
+++ usr.sbin/npf/npfctl/npf_build.c	10 Aug 2025 08:50:09 -0000
@@ -819,6 +819,16 @@ npfctl_build_rule(uint32_t attr, const c
     const char *pcap_filter, const char *rproc)
 {
 	nl_rule_t *rl, *cg;
+	const filt_opts_t empty_fopts = {
+		.uid = { .id = { 0, 0 }, .op = NPF_OP_NONE },
+		.gid = { .id = { 0, 0 }, .op = NPF_OP_NONE },
+		.layer = NPF_RULE_LAYER_3,
+		.fo_finvert = true,
+		.fo_tinvert = true
+	};
+
+	if (fopts == NULL)
+		fopts = &empty_fopts;
 
 	attr |= (npf_conf ? 0 : NPF_RULE_DYNAMIC);
 
