diff --git a/deploy/charts/cert-manager/templates/rbac.yaml b/deploy/charts/cert-manager/templates/rbac.yaml
index 9473d76fa..0b02648f9 100644
--- a/deploy/charts/cert-manager/templates/rbac.yaml
+++ b/deploy/charts/cert-manager/templates/rbac.yaml
@@ -276,7 +276,7 @@ rules:
     resources: ["gateways", "httproutes"]
     verbs: ["get", "list", "watch"]
   - apiGroups: ["networking.x-k8s.io"]
-    resources: ["gateways/finalizers", "httproutes/finalisers"]
+    resources: ["gateways/finalizers", "httproutes/finalizers"]
     verbs: ["update"]
   - apiGroups: [""]
     resources: ["events"]