diff --git a/roles/cert-manager/tasks/main.yaml b/roles/cert-manager/tasks/main.yaml
index a87b8f4..a7e26a9 100644
--- a/roles/cert-manager/tasks/main.yaml
+++ b/roles/cert-manager/tasks/main.yaml
@@ -50,7 +50,7 @@
               rfc2136:
                 nameserver: "{{ external_dns_ip | default(dns_ip) }}:53"
                 tsigAlgorithm: HMACSHA512
-                tsigKeyName: k8s
+                tsigKeyName: "k8s-{{ k8s_cluster_name }}-{{ namespace }}"
                 tsigSecretSecretRef:
                   key: tsig-secret-key
                   name: tsig-secret
@@ -81,7 +81,7 @@
               rfc2136:
                 nameserver: "{{ external_dns_ip | default(dns_ip) }}:53"
                 tsigAlgorithm: HMACSHA512
-                tsigKeyName: k8s
+                tsigKeyName: "k8s-{{ k8s_cluster_name }}-{{ namespace }}"
                 tsigSecretSecretRef:
                   key: tsig-secret-key
                   name: tsig-secret