--- a/tests/test-userguide.t	Tue Dec 13 10:28:09 2016 -0800
+++ b/tests/test-userguide.t	Thu Jan 12 13:47:49 2017 -0800
@@ -109,7 +109,7 @@
   7:05e61aab8294  step 1
   8:be6d5bc8e4cc  step 2
   9:35f432d9f7c1  step 3
-  $ hg fold -d '0 0' -m 'fix bug 64' -r 7::
+  $ hg fold -d '0 0' -m 'fix bug 64' --from -r 7::
   3 changesets folded
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg --hidden shortlog -G -r 6::