diff --git a/sysctl.d/local.conf b/sysctl.d/local.conf
index eed5c6f..b4a8059 100644
--- a/sysctl.d/local.conf
+++ b/sysctl.d/local.conf
@@ -1,3 +1,5 @@
+net.ipv6.bindv6only = 1
+
 net.ipv4.ip_local_port_range = 1024 65535
 
 net.ipv4.conf.*.send_redirects = 0