diff --git a/contrib/util/check-config.sh b/contrib/util/check-config.sh
index 0c5388cc0da5..2283e5de5868 100755
--- a/contrib/util/check-config.sh
+++ b/contrib/util/check-config.sh
@@ -388,7 +388,7 @@ flags="
   CGROUPS CGROUP_PIDS CGROUP_CPUACCT CGROUP_DEVICE CGROUP_FREEZER CGROUP_SCHED CPUSETS MEMCG
   KEYS
   VETH BRIDGE BRIDGE_NETFILTER
-  IP_NF_FILTER IP_NF_TARGET_MASQUERADE
+  IP_NF_FILTER IP_NF_TARGET_MASQUERADE IP_NF_TARGET_REJECT
   NETFILTER_XT_MATCH_ADDRTYPE NETFILTER_XT_MATCH_CONNTRACK NETFILTER_XT_MATCH_IPVS NETFILTER_XT_MATCH_COMMENT NETFILTER_XT_MATCH_MULTIPORT
   IP_NF_NAT NF_NAT
   POSIX_MQUEUE