diff --git a/bin/tests/system/xfer/ns2/named.conf b/bin/tests/system/xfer/ns2/named.conf
index c70979a719..b50587bd67 100644
--- a/bin/tests/system/xfer/ns2/named.conf
+++ b/bin/tests/system/xfer/ns2/named.conf
@@ -1,6 +1,7 @@
 options {
 	pid-file "named.pid";
 	listen-on { 10.53.0.2; };
+	query-source address 10.53.0.2 port 1995;
 	recursion no;
 	notify yes;
 };