diff --git a/tests/test-tweakdefaults-update.t b/tests/test-tweakdefaults-update.t
--- a/tests/test-tweakdefaults-update.t
+++ b/tests/test-tweakdefaults-update.t
@@ -69,6 +69,6 @@
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   $ hg st
   ? foo
-  $ hg update .^
+  $ hg update ".^"
   1 files updated, 0 files merged, 0 files removed, 0 files unresolved
   (hint: use 'hg prev' to move to the parent changeset)