--- a/tests/test-persistent-nodemap.t	Wed Jan 15 15:47:59 2020 +0100
+++ b/tests/test-persistent-nodemap.t	Wed Jan 15 15:48:09 2020 +0100
@@ -8,6 +8,8 @@
   $ cat << EOF >> .hg/hgrc
   > [experimental]
   > exp-persistent-nodemap=yes
+  > [devel]
+  > persistent-nodemap=yes
   > EOF
   $ hg debugbuilddag .+5000
   $ f --size .hg/store/00changelog.n