diff --git a/hello-stratum.morph b/hello-stratum.morph
index 73ed482..475fe0f 100644
--- a/hello-stratum.morph
+++ b/hello-stratum.morph
@@ -2,7 +2,8 @@ chunks:
 - build-depends: []
   build-mode: test
   name: hello
-  ref: master
+  ref: newbranch
   repo: test:hello
+  unpetrify-ref: master
 kind: stratum
 name: hello-stratum