diff --git a/package/kernel/linux/files/sysctl-nf-conntrack.conf b/package/kernel/linux/files/sysctl-nf-conntrack.conf
index c962257997..8ef32893f4 100644
--- a/package/kernel/linux/files/sysctl-nf-conntrack.conf
+++ b/package/kernel/linux/files/sysctl-nf-conntrack.conf
@@ -8,3 +8,5 @@ net.netfilter.nf_conntrack_tcp_timeout_established=7440
 net.netfilter.nf_conntrack_udp_timeout=60
 net.netfilter.nf_conntrack_udp_timeout_stream=180
 net.netfilter.nf_conntrack_helper=1
+net.netfilter.nf_conntrack_buckets=16384
+net.netfilter.nf_conntrack_expect_max=512