diff --git a/hgext/rebase.py b/hgext/rebase.py
--- a/hgext/rebase.py
+++ b/hgext/rebase.py
@@ -790,7 +790,7 @@ def buildstate(repo, dest, rebaseset, co
                 repo.ui.debug('source is a child of destination\n')
                 return None
 
-        repo.ui.debug('rebase onto %d starting from %s\n' % (dest, roots))
+        repo.ui.debug('rebase onto %d starting from %s\n' % (dest, root))
         state.update(dict.fromkeys(rebaseset, nullrev))
         # Rebase tries to turn <dest> into a parent of <root> while
         # preserving the number of parents of rebased changesets:
diff --git a/tests/test-rebase-conflicts.t b/tests/test-rebase-conflicts.t
--- a/tests/test-rebase-conflicts.t
+++ b/tests/test-rebase-conflicts.t
@@ -210,7 +210,7 @@ Check that the right ancestors is used w
      summary:     added default.txt
   
   $ hg rebase -s9 -d2 --debug # use debug to really check merge base used
-  rebase onto 2 starting from [<changectx e31216eec445>]
+  rebase onto 2 starting from e31216eec445
   rebasing: 9:e31216eec445 5/6 changesets (83.33%)
    future parents are 2 and -1
   rebase status stored