diff --git a/plugin/special/private.go b/plugin/special/private.go
index 18ad98a905..a3907aee7c 100644
--- a/plugin/special/private.go
+++ b/plugin/special/private.go
@@ -29,6 +29,7 @@ var privateCIDRs = []string{
 	"224.0.0.0/4",
 	"240.0.0.0/4",
 	"255.255.255.255/32",
+	"::/128",
 	"::1/128",
 	"fc00::/7",
 	"ff00::/8",