diff --git a/etc/inc/filter.inc b/etc/inc/filter.inc
index 602878dc81..21dd2ee348 100644
--- a/etc/inc/filter.inc
+++ b/etc/inc/filter.inc
@@ -2978,7 +2978,6 @@ EOD;
 # block anything from private networks on interfaces with the option set
 block in $privnetlog quick on \${$oc['descr']} from 10.0.0.0/8 to any tracker {$increment_tracker($tracker)} label "{$fix_rule_label("Block private networks from {$oc['descr']} block 10/8")}"
 block in $privnetlog quick on \${$oc['descr']} from 127.0.0.0/8 to any tracker {$increment_tracker($tracker)} label "{$fix_rule_label("Block private networks from {$oc['descr']} block 127/8")}"
-block in $privnetlog quick on \${$oc['descr']} from 100.64.0.0/10 to any tracker {$increment_tracker($tracker)} label "{$fix_rule_label("Block private networks from {$oc['descr']} block 100.64/10")}"
 block in $privnetlog quick on \${$oc['descr']} from 172.16.0.0/12 to any tracker {$increment_tracker($tracker)} label "{$fix_rule_label("Block private networks from {$oc['descr']} block 172.16/12")}"
 block in $privnetlog quick on \${$oc['descr']} from 192.168.0.0/16 to any tracker {$increment_tracker($tracker)} label "{$fix_rule_label("Block private networks from {$oc['descr']} block 192.168/16")}"
 block in $privnetlog quick on \${$oc['descr']} from fc00::/7 to any tracker {$increment_tracker($tracker)} label "{$fix_rule_label("Block ULA networks from {$oc['descr']} block fc00::/7")}"