diff --git a/ns-whitelist.txt b/ns-whitelist.txt
index 1017803956..3de73e1975 100644
--- a/ns-whitelist.txt
+++ b/ns-whitelist.txt
@@ -107,3 +107,5 @@ ns2.oray.net.
 .sohu.com.
 .dns234.net.
 .awsdns-cn-
+.hwclouds-dns.com.
+.hwclouds-dns.net.