diff --git a/config/brokers/mt-channel-broker-tls/broker-filter-tls-certificate.yaml b/config/brokers/mt-channel-broker-tls/broker-filter-tls-certificate.yaml
index f008e3d82d2..a91c659caa4 100644
--- a/config/brokers/mt-channel-broker-tls/broker-filter-tls-certificate.yaml
+++ b/config/brokers/mt-channel-broker-tls/broker-filter-tls-certificate.yaml
@@ -40,6 +40,7 @@ spec:
 
   dnsNames:
     - broker-filter.knative-eventing.svc.cluster.local
+    - broker-filter.knative-eventing.svc
 
   issuerRef:
     name: selfsigned-ca-issuer
diff --git a/config/brokers/mt-channel-broker-tls/broker-ingress-tls-certificate.yaml b/config/brokers/mt-channel-broker-tls/broker-ingress-tls-certificate.yaml
index 614bfe13d06..9116ea3ba01 100644
--- a/config/brokers/mt-channel-broker-tls/broker-ingress-tls-certificate.yaml
+++ b/config/brokers/mt-channel-broker-tls/broker-ingress-tls-certificate.yaml
@@ -40,6 +40,7 @@ spec:
 
   dnsNames:
     - broker-ingress.knative-eventing.svc.cluster.local
+    - broker-ingress.knative-eventing.svc
 
   issuerRef:
     name: selfsigned-ca-issuer
diff --git a/config/channels/in-memory-channel-tls/imc-dispatcher-tls-certificate.yaml b/config/channels/in-memory-channel-tls/imc-dispatcher-tls-certificate.yaml
index 60f433fbd10..f17cbc62967 100644
--- a/config/channels/in-memory-channel-tls/imc-dispatcher-tls-certificate.yaml
+++ b/config/channels/in-memory-channel-tls/imc-dispatcher-tls-certificate.yaml
@@ -40,6 +40,7 @@ spec:
 
   dnsNames:
     - imc-dispatcher.knative-eventing.svc.cluster.local
+    - imc-dispatcher.knative-eventing.svc
 
   issuerRef:
     name: selfsigned-ca-issuer