diff --git a/infrastructure/sources/kustomization.yaml b/infrastructure/sources/kustomization.yaml
new file mode 100644
index 0000000000000000000000000000000000000000..7497ab7c8e5edf56c045c73a75c521c83366b479
--- /dev/null
+++ b/infrastructure/sources/kustomization.yaml
@@ -0,0 +1,5 @@
+piVersion: kustomize.config.k8s.io/v1beta1
+kind: Kustomization
+namespace: flux-system
+resources:
+  - zalando-postgres.yaml