diff --git a/hello-stratum.morph b/hello-stratum.morph
index e012b5f..cc0609a 100644
--- a/hello-stratum.morph
+++ b/hello-stratum.morph
@@ -3,6 +3,7 @@ kind: stratum
 chunks:
 - name: hello
   repo: test:hello
-  ref: master
+  ref: newbranch
+  unpetrify-ref: master
   build-depends: []
   build-mode: test