diff --git a/manifests/complete-postgres-manifest.yaml b/manifests/complete-postgres-manifest.yaml
index 496a2348a..a38988e5c 100644
--- a/manifests/complete-postgres-manifest.yaml
+++ b/manifests/complete-postgres-manifest.yaml
@@ -26,7 +26,7 @@ spec:
   preparedDatabases:
     ab_db:
       schemas:
-        data:
+        data: {}
         history:
           defaultRoles: false
 
diff --git a/manifests/minimal-postgres-manifest.yaml b/manifests/minimal-postgres-manifest.yaml
index 840bc69b4..ff548fd25 100644
--- a/manifests/minimal-postgres-manifest.yaml
+++ b/manifests/minimal-postgres-manifest.yaml
@@ -16,6 +16,6 @@ spec:
   databases:
     foo: zalando  # dbname: owner
   preparedDatabases:
-    bar:
+    bar: {}
   postgresql:
     version: "11"