diff --git a/example/descriptor-only-topics.yaml b/example/descriptor-only-topics.yaml
index 57e3cb509..cd46f50b1 100644
--- a/example/descriptor-only-topics.yaml
+++ b/example/descriptor-only-topics.yaml
@@ -2,6 +2,8 @@
 context: "oltp"
 projects:
   - name: "foo"
+    consumers:
+      - principal: "User:App0"
     topics:
       - name: "foo"
         config: