diff --git a/A3/overlays/dev/kustomization.yaml b/A3/overlays/dev/kustomization.yaml
index a62e5d2..f9c6c41 100644
--- a/A3/overlays/dev/kustomization.yaml
+++ b/A3/overlays/dev/kustomization.yaml
@@ -10,3 +10,12 @@ resources:
 images:
 - name: registry.gwg313.xyz/private/a3-dev
   newTag: e1d98f86f22ab1475237e8d14920f38630ad17e9
+
+patches:
+  - target:
+      kind: Certificate
+      name: a3-dev-cert
+    patch: |-
+      - op: replace
+        path: /metadata/namespace
+        value: istio-system