--- a/tests/test-update-branches.t	Tue Oct 14 13:27:00 2014 -0700
+++ b/tests/test-update-branches.t	Tue Oct 14 13:34:25 2014 -0700
@@ -180,14 +180,10 @@
 successors should be taken in account when checking head destination
 
   $ cat << EOF >> $HGRCPATH
-  > [extensions]
-  > obs=$TESTTMP/obs.py
   > [ui]
   > logtemplate={rev}:{node|short} {desc|firstline}
-  > EOF
-  $ cat > $TESTTMP/obs.py << EOF
-  > import mercurial.obsolete
-  > mercurial.obsolete._enabled = True
+  > [experimental]
+  > evolution=createmarkers
   > EOF
 
 Test no-argument update to a successor of an obsoleted changeset