--- a/tests/test-unionrepo.t	Thu May 09 11:37:20 2013 +0900
+++ b/tests/test-unionrepo.t	Thu May 09 15:01:11 2013 -0500
@@ -112,7 +112,7 @@
 
 annotate works - an indication that linkrevs works
 
-  $ hg --cwd repo1 -R union:../repo2 annotate $TESTTMP/repo1/f -r tip
+  $ hg --cwd repo1 -Runion:../repo2 annotate $TESTTMP/repo1/f -r tip
   3: repo2-1 at top
   0: repo1-0
   1: repo1-1