diff --git a/bin/tests/system/chain/ns2/named.conf.in b/bin/tests/system/chain/ns2/named.conf.in
index 922d2fa5f9..6f75c0791a 100644
--- a/bin/tests/system/chain/ns2/named.conf.in
+++ b/bin/tests/system/chain/ns2/named.conf.in
@@ -26,6 +26,11 @@ options {
 	notify yes;
 };
 
+zone . {
+       type hint;
+       file "../../_common/root.hint";
+};
+
 zone "example" {
 	type primary;
 	file "example.db.signed";
diff --git a/bin/tests/system/dnssec/ns4/named4.conf.in b/bin/tests/system/dnssec/ns4/named4.conf.in
index d192ceb4b3..941211993d 100644
--- a/bin/tests/system/dnssec/ns4/named4.conf.in
+++ b/bin/tests/system/dnssec/ns4/named4.conf.in
@@ -66,6 +66,11 @@ view auth {
 	recursion no;
 	allow-recursion { none; };
 
+	zone "." {
+		type hint;
+		file "../../_common/root.hint";
+	};
+
 	zone secure.example {
 		type secondary;
 		primaries { 10.53.0.3; };