diff --git a/kconfigcheck.toml b/kconfigcheck.toml
index 909955670..1c476c2b8 100644
--- a/kconfigcheck.toml
+++ b/kconfigcheck.toml
@@ -124,7 +124,6 @@ BRIDGE = "m"
 BRIDGE_VLAN_FILTERING = "y"
 CGROUP_BPF = "y"
 FUSE_FS = "m"
-IP_NF_IPTABLES_LEGACY = "m"
 IP_NF_MANGLE = "m"
 NETFILTER_XTABLES = "m"
 NETFILTER_XT_MATCH_COMMENT = "m"
@@ -139,6 +138,8 @@ VLAN_8021Q = "m"  # prerequisite for bridge
 CROSS_MEMORY_ATTACH = "y"
 ["category:waydroid"."<5.18"."all"]
 ASHMEM = "y"
+["category:waydroid".">=6.9"."all"]
+IP_NF_IPTABLES_LEGACY = "m"
 ["category:waydroid".">=6.17"."all"]
 NETFILTER_XTABLES_LEGACY = "y"
 
@@ -182,17 +183,18 @@ NF_REJECT_IPV4 = "m"
 IP_NF_IPTABLES = "m"
 IP_NF_FILTER = "m"
 IP_NF_TARGET_REJECT = "m"
-IP_NF_IPTABLES_LEGACY = "m"
 IP_NF_NAT = "m"
 NF_TABLES_IPV6 = "y"
 NF_REJECT_IPV6 = "m"
 IP6_NF_IPTABLES = "m"
-IP6_NF_IPTABLES_LEGACY = "m"
 IP6_NF_FILTER = "m"
 IP6_NF_TARGET_REJECT = "m"
 IP6_NF_NAT = "m"
 ["category:nftables".">=3.13.0 <5.17"."all"]
 NFT_COUNTER = "y"
+["category:nftables".">=6.9"."all"]
+IP_NF_IPTABLES_LEGACY = "m"
+IP6_NF_IPTABLES_LEGACY = "m"
 ["category:nftables".">=6.17"."all"]
 NETFILTER_XTABLES_LEGACY = "y"