diff --git a/bin/tests/system/inline/ns5/named.conf.post b/bin/tests/system/inline/ns5/named.conf.post
index 169c2bb81a..c4a107ede2 100644
--- a/bin/tests/system/inline/ns5/named.conf.post
+++ b/bin/tests/system/inline/ns5/named.conf.post
@@ -27,6 +27,7 @@ options {
 	pid-file "named.pid";
 	listen-on { 10.53.0.5; };
 	listen-on-v6 { none; };
+	dnssec-validation no;
 	recursion no;
 	notify yes;
 	notify-delay 0;
diff --git a/bin/tests/system/inline/ns5/named.conf.pre b/bin/tests/system/inline/ns5/named.conf.pre
index 2018289634..a3ea6f2a8f 100644
--- a/bin/tests/system/inline/ns5/named.conf.pre
+++ b/bin/tests/system/inline/ns5/named.conf.pre
@@ -27,6 +27,7 @@ options {
 	pid-file "named.pid";
 	listen-on { 10.53.0.5; };
 	listen-on-v6 { none; };
+	dnssec-validation no;
 	recursion no;
 	notify yes;
 	notify-delay 0;
diff --git a/bin/tests/system/inline/ns7/named.conf.in b/bin/tests/system/inline/ns7/named.conf.in
index 4e99dabea5..00fed785a4 100644
--- a/bin/tests/system/inline/ns7/named.conf.in
+++ b/bin/tests/system/inline/ns7/named.conf.in
@@ -41,6 +41,7 @@ options {
 	pid-file "named.pid";
 	listen-on { 10.53.0.7; };
 	listen-on-v6 { none; };
+	dnssec-validation no;
 	recursion no;
 	notify no;
 	try-tcp-refresh no;
diff --git a/bin/tests/system/nsec3/ns3/named.conf.in b/bin/tests/system/nsec3/ns3/named.conf.in
index de097744ba..022e9421bc 100644
--- a/bin/tests/system/nsec3/ns3/named.conf.in
+++ b/bin/tests/system/nsec3/ns3/named.conf.in
@@ -46,6 +46,7 @@ options {
 	listen-on-v6 { none; };
 	allow-transfer { any; };
 	recursion no;
+	dnssec-validation no;
 };
 
 key rndc_key {
diff --git a/bin/tests/system/nsec3/ns3/named2.conf.in b/bin/tests/system/nsec3/ns3/named2.conf.in
index 084bba3f0b..4e6d644a3d 100644
--- a/bin/tests/system/nsec3/ns3/named2.conf.in
+++ b/bin/tests/system/nsec3/ns3/named2.conf.in
@@ -46,6 +46,7 @@ options {
 	listen-on-v6 { none; };
 	allow-transfer { any; };
 	recursion no;
+	dnssec-validation no;
 };
 
 key rndc_key {
diff --git a/bin/tests/system/serve-stale/ns6/named.conf.in b/bin/tests/system/serve-stale/ns6/named.conf.in
index 15f5dd6c73..ddc5afe5a8 100644
--- a/bin/tests/system/serve-stale/ns6/named.conf.in
+++ b/bin/tests/system/serve-stale/ns6/named.conf.in
@@ -28,6 +28,7 @@ options {
 	pid-file "named.pid";
 	listen-on { 10.53.0.6; };
 	listen-on-v6 { none; };
+	dnssec-validation no;
 	recursion no;
 };
 
diff --git a/bin/tests/system/tsig/ns1/named.conf.in b/bin/tests/system/tsig/ns1/named.conf.in
index de16ccf493..120cd9062f 100644
--- a/bin/tests/system/tsig/ns1/named.conf.in
+++ b/bin/tests/system/tsig/ns1/named.conf.in
@@ -20,6 +20,7 @@ options {
 	listen-on { 10.53.0.1; };
 	listen-on-v6 { none; };
 	recursion yes;
+	dnssec-validation no;
 	notify no;
 };