diff --git a/etc/sysctl.d/30_security-misc.conf b/etc/sysctl.d/30_security-misc.conf
index 846c8b0..0e7bc3d 100644
--- a/etc/sysctl.d/30_security-misc.conf
+++ b/etc/sysctl.d/30_security-misc.conf
@@ -89,6 +89,7 @@ net.ipv6.conf.default.accept_redirects=0
 
 ## Ignores ICMP requests.
 net.ipv4.icmp_echo_ignore_all=1
+net.ipv6.icmp.echo_ignore_all=1
 
 ## Ignores bogus ICMP error responses
 net.ipv4.icmp_ignore_bogus_error_responses=1