diff --git a/bin/tests/system/chain/ns7/named.conf.in b/bin/tests/system/chain/ns7/named.conf.in
index c314922a7c..25476408b8 100644
--- a/bin/tests/system/chain/ns7/named.conf.in
+++ b/bin/tests/system/chain/ns7/named.conf.in
@@ -28,6 +28,14 @@ options {
 	};
 };
 
+server 10.53.0.3 {
+	tcp-on-no-cookie false;
+};
+
+server 10.53.0.4 {
+	tcp-on-no-cookie false;
+};
+
 key rndc_key {
 	secret "1234abcd8765";
 	algorithm hmac-sha256;